It happens when a sensory receptor transforms a particular stimulus energy (such as a photon or sound wave) into an electrical impulse that the brain can understand.
Where does transduction take place, and what is it?Genes from one host cell (a bacterium) are incorporated into the genome of a bacterial virus (a bacteriophage), which is then transferred to another host cell when the bacteriophage starts a new cycle of infection. This process is known as transduction in bacteria.
Where in the cell does transduction take place?The organ of Corti contains the transduction site (spiral organ). It is made up of short, hair-like stereocilia that are exposed and held in place above the basilar membrane like flowers emerging from the ground.
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Which of the following does NOT influence the pH of the blood and extracellular fluids?
A) respiration
B) blood proteins
C) bicarbonate ions
D) filtration by glomerulus
E) phosphate and ammonia ions
d
filtration by glomerulus is the process which does not influence the pH of the blood and extracellular fluids in human body. it is associated with kidney.
The process of generating urine starts with glomerular filtration. It is the procedure your kidneys utilize to filter extra fluid and waste from your blood into the kidney's urine-collecting tubules, allowing your body to discard them. Each nephron receives blood through a glomerulus, which is a collection of small blood arteries. Smaller molecules, wastes, and fluid—mostly water—can enter the tubule through the glomerulus' thin walls. Larger molecules like blood cells and proteins stay inside the blood vessel. Fenestrated endothelial cells, glomerular basement membrane, and podocytes are three distinct layers of the glomerular filtration barrier.
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Watch the video clip of cells in the small intestine. Name the general location along the villus where the
following processes occur:
Cell Division:
Cell Differentiation:
Apoptosis:
Cell division: The bottom of the villus in the crypt. Cell differentiation: Ascending the villus. Apoptosis: Apex of the villus.
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.
The process by which a parent cell divides into two daughter cells is known as cell division. Cell expansion and chromosome replication come before cell division, which usually happens as part of a prolonged cell cycle. Meiosis produces haploid gametes for sexual reproduction by reducing the number of chromosomes from two of each kind in the diploid parent cell to one of each kind in the daughter cells. Cell division occurs through the process of mitosis, which results in daughter cells that are genetically identical to their parent cells. In cell biology, the cell cycle includes the process of mitosis, in which duplicated chromosomes are split into two new nuclei.
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The first step in the process of the photoreception is
a. the bleaching of cones
b. absorption of a photon by a visual pigment
c. release of neurotransmitter
d. the bleaching of rods
e. inhibition of the sodium pumps
The first step in the process of photoreception is the absorption of a photon by a visual pigment (Option b).
What is the process of photoreception?The process of photoreception makes reference to all phenomena that occur from photoreceptor cells in the eye being excited as a consequence of an environmental visual stimulus until the processing of the image in the brain.
Therefore, with this data, we can see that the process of photoreception is initiated by the stimulation of photoreceptor cells in the eye, which contain pigments that serve to sense photon signals.
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You can use the Punnett square to see what would happen to the distribution of phenotype frequencies if one of the three genes were lethal when homozygous recessive. Select (Figure 3) from the drop-down menu. Notice that bb has been used as an example of a lethal genotype. Because bb individuals would not survive, those squares have been crossed out.
Now what are the phenotypic frequencies of the surviving offspring?
the phenotype that is brought about by having three dark-skinned alleles. There are cross-outs on the squares.
What is a phenotypic?phenotype, all of an organism's observable traits that emerge from of the interaction of it's own genotypes (genetic variation inheritance) and environment.
What does phenotype versus genotype mean?Genotype is the individual's unique DNA pattern. The multiple alleles a person acquired for a single gene are more specifically referred to by this phrase. The clinical presentation of a patient's condition is the observable expression of this genotype.
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When grown anaerobically on glucose, yeast (S. cerevisiae) converts pyruvate to acetaldehyde, then reduces acetaldehyde to ethanol using electrons from NADH.
a. Write the coupled half reactions, and the combined reaction representing the 2n6 step of fermentation mentioned above ("reduces acetaldehyde to ethanol using electrons from NADH") b. Calculate the equilibrium constant at 25"C, given the standard reduction potentials shown In Table 13.7 (page 521). Show vour work: c. Large-scale industrial fermenters generally require constant, vigorous cooling: Why? Support with information from your earlier answer.
Chemical formula
Alcohol Dehydrogenase is C2H5OH + NAD+ and CH3CHO + NADH + H+.
(Acetldehyde) (Ethanol) (Ethanol)
Ecell equals ereduction minus eoxidation
= -1.97 - (-3.20) (-3.20)
= 1.23 V
Nernst equation under normal circumstances Ecell equals 0.0592/n X (log K)
N (electron number) = 2
= 1.23 = 0.0592/2 Xlog K
= 1.23 = 0.0296 X log K
log K = 1.23 / 0.0296
log K = 41.55
K = 1041.55
K = 3.54 X 1041
3.54 X 1041 is the equilibrium constant (K).
When there is a shortage of oxygen (O2), glucose is converted to lactate through anaerobic glycolysis. Only during brief, intensive exercise, lasting between 10 seconds and 2 minutes, is anaerobic glycolysis a viable method of generating energy.
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ou are excited to try your first crispr experiment. you introduce cas9 and one sgrna into a dish of cultured human cells. you then sequence dna from four different cells and obtain the results of sequences 1-4 below. you decide to repeat your first crispr experiment using cas9 and two different sgrnas into a dish of cultured human cells. you sequence dna from three additional cells and obtain the results of sequences 5-7. which type of endogenous dna repair would produce the results in all seven of these cells following a cas9 double-strand break? both neither nhej hr
NHEJ and HR neither. Non-homologous end joining (NHEJ), a kind of endogenous DNA repair that fixes double-strand breaks without the requirement for a matching template, is most likely responsible for the outcomes in all seven cells.
One method for fixing DNA double-strand breaks is non-homologous end joining. NHEJ is also known as "non-homologous." This is because, in contrast to homology-directed repair, which needs homologous sequences to direct repair, the break ends are directly ligated without the requirement for a homologous template.
What makes homologous recombination different from non-homologous recombination?
While non-homologous recombination is the insertion of additional genetic material to the Also known as transgenesis, homologous recombination is the interchange of genetic material between identical strands. NHEJ occurs via three primary three steps:
identifying DSBs, preparing DNA ends, and connecting two of her DSBs if necessary.It is interesting that NHEJ does not require the excision of DNA ends to begin repair and can instead immediately rejoin damaged DNA ends.
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A. Insertion
B. deletion
C. frameshift
D. substitution
A lead to T transversion in the second nucleotide of codon 6 of the beta-globin gene causes sickle-cell anemia, hence option D substitution is the correct option.
What is sickle-cell anemia?The beta-globin gene makes hemoglobin S, which polymerizes in the deoxygenated state.
This causes physical distortion or sickling of erythrocytes, containing an A to T point mutation that is the source of the condition.
Therefore, sickle erythrocytes encourage hemolysis and vaso-occlusion, two of the disease's key symptoms, hence option D substitution is the correct option.
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In general, freshwater animals tend to: A) lose water and gain ions B) gain water and ions C) gain water and lose ions D) lose water and ions
Because they obtained water via a process known as US osmosis, Option C, which states that they gain water and lose ions, is the accurate response.
What is water that is fresh?
Freshwater is defined as water with less than 1,000 milligrams of dissolved particles per liter, most frequently salt. Earth's surface water bodies are often seen as renewable resources because they are a part of the water cycle, despite the fact that they rely heavily on other water cycle components.
What types of freshwater are there?
Glaciers, lakes, reservoirs, ponds, rivers, streams, wetlands, and even groundwater all contain fresh water. Although they make up less than 1% of the world's surface, these freshwater environments are home to up to 40% of all known fish and 10% of all known animals.
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biochemical and functional characterization of mutant kras epitopes validates this oncoprotein for immunological targeting
The immunological targeting of cancer cells by this oncoprotein to grow and disseminate throughout the body is confirmed by the biochemical and functional characterization of mutant KRAS epitopes.
KRAS mutations are among the most prevalent gene mutations associated with cancer, found in around 25% of malignancies. They frequently contribute to pancreatic, colorectal, and lung malignancies. KRAS is the cause of 85% - 90% of pancreatic cancer cases, 40% of colorectal malignancies, and 32% of lung cancer cases.
The KRAS gene is a member of the oncogene gene family. Oncogenes can transform healthy cells into malignant ones when they are altered. The HRAS and NRAS genes are two more members of the Ras group of oncogenes, which also contain the KRAS gene.
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a water flow rate below______ gpm may facilitate bacterial growth in an infrequently used hot water line.
A water flow rate below 1.5 gpm may facilitate bacterial growth in an infrequently used hot water line.
Binary fission, a process that causes bacteria to divide into two daughter cells, is the basis of bacterial growth. The daughter cells that result are genetically identical to the original cell, assuming no event takes place. As a result, germs start to proliferate. Not often do the two daughter cells from the division live. However, the bacterial population experiences exponential growth if the average number of survivors exceeds unity.
The basic method requires bacterial enumeration (cell counting) by direct and individual (microscopic, flow cytometry, direct and bulk (biomass), indirect and individual (colony counting), or indirect and bulk (most probable number, turbidity, nutrient uptake) methods. This measurement of an exponential bacterial growth curve in batch culture was traditionally a part of the training of all microbiologists. Models bring theory and measurements into harmony.
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Whereas sodium is found mainly in the extracellular fluid, most ________ is found in the intracellular fluid.
A. potassium
B. iron
C. bicarbonate
D. chloride
The correct answer is (A) potassium.
While potassium and phosphate are the major ions in the intracellular fluid, sodium chloride makes up the majority of the extracellular fluid. What ion does intracellular fluid contain? The main cation and anion in extracellular fluid, respectively, are sodium and chloride. In the intracellular fluid, potassium is the main cation. The ECF's main nonpenetrating solute is NaCl. The charge on its ions prevents them from smoothly passing through the phospholipid bilayer of the cell membrane. Although some does enter cells, ATPases pump out at a rate that is about equal, rendering this substance effectively impenetrable. The concentration of osmotically active particles in a solution is measured by osmolarity. Chemists may refer to it as a "collaborative" characteristic of the solution.
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Two mothers took their new babies home from the hospital on the same day. On the first day home, when mother number one was removing the hospital name tag from her baby, she discovered that the other mother's name was on the tag. The other mother was contacted, but she was sure that she had the right baby. She did not want to give up the baby she had brought home from the hospital. Because the identity of the babies was disputed, the issue had to be decided in court. Analyze the data provided in the table and apply the laws of inheritance to solve the problem.
THINK CRITICALLY: what is the only blood type the baby from family one could have? should the babies be exchanged? because A and B blood types are always dominant to blood type O, what other blood type could baby from family two have?
Answer:
Father sex to your mother and the baby born that is you
which of the following events in transcription initiation likely occurs last? view available hint(s)for part e which of the following events in transcription initiation likely occurs last? tbp is recruited to the promoter. regulatory transcription factors bind to enhancers. basal transcription factors form a basal transcription complex. rna polymerase binds to the promoter of the gene.
RNA polymerase binds to the promoter of the gene, events in transcription initiation likely occurs last.
A DNA fragment is copied into RNA during transcription. Messenger RNA is created when specific DNA sequences are translated into RNA molecules that can encode proteins (mRNA). Non-coding RNAs are RNA molecules that contain copies of other DNA sequences (ncRNAs). Only 1% to 3% of all RNA samples are mRNA. A minimum of 80% of mammalian genomic DNA can be actively transcribed (in one or more types of cells), with the bulk of this 80% being ncRNA. In contrast, less than 2% of the human genome can be transcribed into mRNA. The RNA is known as messenger RNA (mRNA) if the stretch of DNA is translated into an RNA molecule that encodes a protein. The mRNA then acts as a template for the translation of the protein. Other DNA stretches may be translated into larger non-coding RNAs like ribosomal RNA (rRNA) and long non-coding RNA as well as smaller non-coding RNAs like microRNA, transfer RNA (tRNA), small nucleolar RNA (snoRNA), small nuclear RNA (snRNA), or enzymatic RNA molecules called ribozyme. Overall, RNA is essential for carrying out tasks within a cell since it aids in the synthesis, control, and processing of proteins.
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match the major nerve with its associated plexus. 1. femoral nerve (click to select)2. tibial nerve (click to select)3. median nerve (click to select)4. common fibular (peroneal) nerve (click to select)5. axillary nerve (click to select)6. radial nerve (click to select)7. musculocutaneous nerve (click to select)8. ulnar nerve (click to select)9. obturator nerve (click to select)
The below reference image shows the match major nerve with its associated plexus.
The cervical plexus, brachial plexus, lumbar plexus, and sacral plexus are the four main nerve plexuses. The brachial and lumbosacral plexuses are the two main nerve plexuses. The cervical spine is where the brachial plexus and lumbosacral plexus arise, respectively. The name "plexus" refers to a "web" of nerves that develops just laterally to the intervertebral foramina via which T12-L5 exit the spinal cord. The plexus is bilateral and permits different levels of nerves to unite to form several functional nerves that innervate distinct areas.
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A disease called primary ciliary dyskenisia is characterized by abnormal ciliary movements. In these cilia, microtubule functioning is disrupted due to microtubules missing an essential component. This disease could be caused by __________.
lack of dynein proteins
A disease called primary ciliary dyskenisia is characterized by abnormal ciliary movements. In these cilia, microtubule functioning is disrupted due to microtubules missing an essential component. This disease could be caused by lack of dynein proteins.
Large macro- and biomolecules consisting of one or more extended chains of amino acid residues are known as proteins. In living things, proteins have many different jobs, including as speeding up metabolic processes, replicating DNA, reacting to stimuli, giving cells and organisms structure, and transporting substances. The primary way that proteins differ from one another is the arrangement of their amino acids, which is determined by the nucleotide sequence of their genes and typically allows a protein to fold into a certain 3D structure that controls its function.
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The increase in global population due ultimately to agriculture may cause which of the following negative effects? A) increased crowding, leading to poor sanitation B) increased spread of infectious disease C) more rainforests as a result of warming D) an overall cooling of Earth’s atmosphere, causing a new Ice Age to occur
Poor sanitation as a result of increased crowdedness - As human population density rises, the sanitation infrastructure will experience increasing strain.
Which of the following describes how a growing human population affects society?The expansion of the human population has a range of effects on the Earth system, including: increasing the amount of environmental resources being extracted. These resources include minerals, plants, water, and fossil fuels (oil, gas, and coal).
What occurs as population growth picks up?The need for food, water, housing, healthcare, transportation, and other resources will rise the population grows. And all consumption increases the likelihood of major catastrophes like pandemics, and degrades the environment.
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connect here to help me understand this question
1) Note that in a dialysis Machine, the part that prevents the loss of plasma protein and red blood cells is the Semipermeable membrane. in the image above, this is labeled as the dialysis membrane.
2) During dialysis, the normal glucose concentration of the blood is typically maintained by adding glucose to the dialysis solution. The dialysis solution is typically held in a large, hollow fiber membrane called a dialyzer, also known as an artificial kidney.
3) Two waste substances that are removed from the blood by the dialysis machine are:
Creatinine; andUrea.What are creatinine and Urea?Urea is a waste product created by the body when protein is broken down. It is generally eliminated in the urine by the kidneys after being taken from circulation.
Creatinine, on the other hand, is a waste product generated by the body that is generally eliminated by the kidneys. It is created by the breakdown of muscle tissue and is generally present in modest levels in the blood.
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The process during which potassium and hydrogen ions, penicillin, and some toxic substances are put into the urine by active transport is called
A) tubular secretion
B) reabsorption.
C) filtration.
D) countercurrent multiplication.
a
Tubular secretion is the mechanism by which penicillin, potassium and hydrogen ions, as well as some hazardous compounds, are actively transported into the urine.
What is reabsorption in the production of urine?The process by which the nephron takes water and solutes from the tubular fluid (pre-urine) and returns them to the circulating blood is known as reabsorption or tubular reabsorption in the field of renal physiology.
What method eliminates potassium from the blood?To maintain a healthy balance of this mineral in the body, the kidneys remove too much potassium through the urine. Your kidneys might not be able to excrete the right quantity of potassium if they are not functioning properly. Potassium may consequently accumulate in the blood.
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the plasma membrane of an excitable cell is more permeable to potassium ions becausemultiple choicecalcium ions block na and cl- channels.there are more leak channels for k than na .protein molecules cannot exit through the cell membrane.of its positive electrical charge.there are more gated channels for k .
the plasma membrane of an excitable cell is more permeable to potassium ions because there are more non-gated channels for K+ than Na+.
The plasma membrane, also known as the cell membrane, safeguards the cell. It also keeps a consistent climate within the cell. And that membrane serves a number of purposes. One function is to bring nutrients into to the cell, the other is to transport harmful chemicals out of the cell. Proteins and lipids are being used to synthesise cell membranes. Endoplasmic reticulum plays a key role in membrane biogenesis. The type of cell membrane greatly influences the cell's function and structure. It safeguards the internal parts of the cell, including that of the nucleus.
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3. Based on the information in the unit, explain how some prisms create rainbows as light passes
through them.
Explanation:
When light passes through a prism, it is bent, or refracted, by the different layers of the prism. This causes the light to separate into its different colors, creating a rainbow. The specific colors that are produced depend on the angle at which the light hits the prism and the index of refraction of the prism material. The index of refraction is a measure of how much the light is bent as it passes through the material. Different materials have different indices of refraction, which can affect the colors that are produced by the prism. For example, a prism made of glass will produce different colors than a prism made of water, because glass and water have different indices of refraction.
Of the following events that occur during meiosis, which contributes most to genetic diversity in the human population? Select one: a. Alignment of sister chromatids at the metaphase plate during meiosis 11 b. Recombination between homologous chromatids during meiosis 1 c. Separation of sister chromatids during meiosis II d. Condensation of chromatin during meiosis
Of the following events that occur during meiosis, (b) Recombination between homologous chromatids during meiosis 1 contributes most to genetic diversity in the human population.
In sexually reproducing organisms, meiosis, a kind of cell division, causes a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm). Human body cells, or somatic cells, are diploid, meaning they have two sets of chromosomes (one from each parent).
The egg and sperm that combine during fertilization must have a single pair of chromosomes, or be haploid, in order to sustain this condition. During meiosis, each diploid cell splits twice to create four haploid daughter cells called gametes.
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all of the following are true statements about meiosis in mammals except: responses it serves as a factor in bringing about variation among offspring. it serves as a factor in bringing about variation among offspring. it follows dna replication. it follows dna replication. it occurs only in reproductive structures. it occurs only in reproductive structures. it produces cells with the haploid number of chromosomes. it produces cells with the haploid number of chromosomes. it produces four genetically identical gametes.
All of the following are true statements about meiosis in mammals except is it produces four genetically identical gametes. Option E.
Meiosis produces gametes containing a complete set of haploid chromosomes. Each gamete contains a different set of DNA because meiosis involves recombination and independent sorting. This creates a unique combination of genes in the resulting zygote. Recombination or crossover occurs during prophase I.
Meiosis is the process by which sperm and egg cells are produced. In males, meiosis occurs after puberty. Diploid cells of the testis undergo meiosis to produce haploid sperm with 23 chromosomes. Meiosis forms four haploid sperm from one diploid cell. Both mitosis and meiosis are processes that describe the generation of new cells.
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accessory muscles including the upper trapezius, serratus anterior, and sternocleidomastoid will assist in:
Accessory muscles including the upper trapezius, serratus anterior, and sternocleidomastoid will assist in: Inspiratory Accessory Muscles
The diaphragm and external intercostals are the main respiratory muscles used during quiet, typical breathing. When the chest is unable to expand or contract sufficiently to meet ventilation demands, accessory muscles of respiration aid the primary muscles. Conditions that impair adequate oxygen and carbon dioxide exchange in the lungs include advanced age, stress, bad posture, COPD, pneumonia, and sickness.
Inspiratory accessory muscles include the sternocleidomastoid, scalenes, pectoralis major and minor, serratus anterior, latissimus dorsi, and upper trapezius.
Rectus abdominis, external and internal oblique, and internal intercostals are the exhalation accessory muscles.
Many of these muscles help with posture, thus strengthening them can not only improve postural alignment but may also help with improved chest expansion and contraction to promote breathing. Additionally, auxiliary expiratory muscles can help clear the airway and cough with force.
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question at position 4 which of the following is currently the best hypothesis for the ecological and evolutionary success of dinosaurs relative to other archosaurs after the triassic period?
Most other lineages of archosaurs went extinct at the end of the Triassic and dinosaurs did not.
Although most groups had vanished by the end of the Triassic, dinosaurs, crocodiles, and pterosaurs managed to live and flourish during the Jurassic and Cretaceous eras. Different forms of locomotion emerged in the two branches of archosaurs. The Triassic saw the first widespread diversification of archosaurs.The pseudosuchians walk stretched out and have an ankle that is often crocodile-like and flexes in the middle to allow the foot to twist against the ankle. Although pterosaurs and other dinosaurs were extinct by the end of the Cretaceous, crocodiles and birds survived because they developed in the Late Jurassic.However, as shown in crocodiles, this ankle joint can also tighten, causing the animal to walk with a high gait. The ornithischians, on the other hand, are compelled to walk erect and put one foot in front of the other like birds because they have an ankle that swings in just one plane (fore and aft).To know more about dinosaurs check the below link:
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To measure 2 ml of a liquid (e.g., water), which would be more accurate, a 10 ml graduated cylinder or a 5 ml pipette? Why
Use the smallest pipet or erlenmeyer flasks appropriate for the task for measuring volume to reduce inaccuracy. For instance, a 5 mL pipet will be more precise than even a 10 mL pipet if you needed to scoop exactly 4.5 mL of liquid.
What makes water essential for life?Our bodies are made up of around 60% water, and without fluids, we can only survive for three to five days. Water is essential for digestion as well as many other vital bodily functions, including as cleaning out waste and controlling body temperature.
What does water have to offer?Human development, food security, energy supply, the maintenance of cities, and ecosystems all depend on water. Overuse, degradation, and climate science are posing an increasing danger toward the world largest rivers and streams today. Extreme weather, droughts, and floods are affecting communities all around the world.
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When a person is exposed to an antigen for the first time, the immune reaction is called the ____________ response.
The immune reaction is referred to as the primary response when a person is initially exposed to an antigen.
What does the word "immune" mean?If you are immune to something, it usually has no impact on you; examples include being immune to a sickness or criticism. You cannot be damaged by anything if you are immune to it. For instance, a plea deal may grant you immunity from prosecution.
Why is the immune system weak?Loads of things, such as food, certain drugs, infections, or having an autoimmune illness, can lower immune system function. You could have a compromised immune system if you regularly catch colds, struggle to recover from infections, feel consistently tired, or suffer stomach problems.
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Answer to this required:
Ileum is the last, and usually the longest, division of the small intestine i.e. the part between the jejunum and large intestine.
The ileum helps to further digest food coming from the stomach and other parts of the small intestine. It absorbs nutrients (vitamins, minerals, carbohydrates, fats, proteins) and water from food so they can be used by the body.
Finger-shaped structures called villi line the entire small intestine so as to aid the process of absorption into the bloodstream. A slow moving blood will also allow for adequate time to absorb substances.
Therefore, for question 1, the presence of a coiled tube will not aid the fast absorption of substances in the ileum.
Oesophagus is the tube that carries food from the pharynx to the stomach. This suggests that oesophagus carries food from the mouth to the next organ, which is the stomach.
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a botanist studied a population of grasses in an area of erratic rainfall. she found that plants with curled leaves reproduced better in dry years, and those with flat leaves reproduced better in wet years. this situation would . group of answer choices lead to directional selection in the grass population lead to uniformity in the grass population cause gene flow in the grass population preserve the variability in the grass population
If the grass plants with alleles for flat leaves reproduced better in wet years, then the situation will lead to d)preserve the variability in the grass population. So, correct option is d.
As indicated by the inquiry, the region where the grass plant develops is described by unpredictable precipitation.This actually intends that in the locale both dry and wet environment endures.Thus, it is important for the grass plants to adjust to both the kind of environment, that is to say, dry and wet.In the dry environment, the grass plants which produce twisted leaves to forestall abundance water misfortune because of happening gets by.In the wet environment, the grass plants which produce level passes on to increment food creation because of the accessibility of enough water and furthermore for eliminating abundance water by the course of happening, makes due.The differentiating variety in environment which continues nearby in various time stretches forestalls the total regenerative strength or progress of one assortment of grass plant (twisted leaved) over the other (level leaves).Subsequently, both the twisted leaf and flat leaf assortment of grass plant exists nearby and the number of inhabitants in one or the other increment or lessening relying upon the climatic state of the area.Hence,correct option is d.
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(Complete question) is:
a botanist studied a population of grasses in an area of erratic rainfall. she found that plants with curled leaves reproduced better in dry years, and those with flat leaves reproduced better in wet years. this situation would . group of answer choices
a)lead to directional selection in the grass population
b)lead to uniformity in the grass population
c)cause gene flow in the grass population
d)preserve the variability in the grass population
I need help, I have no idea what the pictures mean. (20 points)
According to their chemical makeup, which impacts how water and nutrients are absorbed and which crops are best suited for growing in them, soils are often divided into six groups.
What is Soil?Sand, clay, loam, chalk, peat, or silt can all be used as the basis for soil composition. Many soil systems will have variations within them, with some patches having larger concentrations of one component than another.
Sand particles are heavily concentrated in sandy soils, as you would have imagined, making for a very grainy but airy growing medium. They have the ability to quickly drain water and other liquids, are easily worked, and are soft and flexible for digging.
These soils are frequently known for their reduced nutrient availability and propensity to heat up and dry out soon because water drains through them effectively.
Therefore, According to their chemical makeup, which impacts how water and nutrients are absorbed and which crops are best suited for growing in them, soils are often divided into six groups.
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Some cofactors participating in reactions of the citric acid cycle are given. Identify the position or positions each cofactor has in the cycle by selecting the appropriate letter or letters designating that position in the cycle diagram.
NADH+H+
FADH2--> H
GTPNADH+H+--> BDJ
FADH2--> H
GTP--> F
The cofactor and the appropriate letter or letters showing the position in the cycle diagram are:
NADH+H+ - BDJ
FADH2- H
GTP - F
A cofactor is known to be a kind of chemical compound that is said to be non-proteinous in nature. It is also known to be a metallic ion that is often needed in any reaction as a kind of catalyst in that chemical reaction.
Note that the Cofactors is often seen as the "helper molecules" that boast biochemical transformations and as such the letters that show the position in the cycle diagram are the ones given above.
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