Answer: False
hope that help
due to a severe hemorrhage, the stretch in the aorta will be decreased with each heartbeat. what reflex will result?
Due to a severe hemorrhage, skin blood arteries will expand to produce a compensatory increase in flow as baroreceptors and the vasomotor centre fire more frequently.
An acute blood loss from a broken blood vessel is called a haemorrhage. Minor bleeding can occur when the skin's superficial blood vessels are harmed, which can result in petechiae and ecchymosis. It can also have a considerable impact, resulting in a constellation of symptoms that is more unclear and includes changes in vital signs and disturbed mental status. Both internal and external haemorrhaging are possible.
External bleeding can come from a traumatised wound or a bodily orifice. High clinical suspicion for internal bleeding must be established through a comprehensive history and physical examination, laboratory investigations, imaging, and careful observation of vital signs. Particularly in the population suffering from acute trauma, haemorrhage is a primary factor in possibly avoidable fatalities.
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glucose is a singular unit of sugar, while starch is a chain of sugar. What is starch?
Answer: Starch is a polysaccharide, or complex carbohydrate, composed of multiple glucose molecules linked together. It is a major source of energy for living organisms and can be found in a wide variety of plants and foods, including potatoes, rice, corn, wheat, and other grains.
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Place the following events in order starting with the vibration of the oval window and ending with the depolarization of hair cells.
1) increased pressure in perilymph of scala vestibuli
2) pressure wave depresses basilar membrane
3) inner hair cells move closer to tectorial membrane
4) stereocilia bend
5) tip-link proteins open K+ channels
6) K+ ions enter hair cell causing depolarization
The vibration of the oval window is the first event, followed by the depolarization of the hair cells, in that sequence.
Oval window vibratesPressure wave travels through the perilymph of the Scala vestibuliBasilar membrane moves up and downInner hair cells are pushed against the tectorial membraneStereocilia bend and tip-link proteins open potassium channelsPotassium ions enter hair cell causing depolarizationIn general, pressure and waves are produced in the perilymph of the Scala vestibuli of the cochlea by mechanical vibrations in the stapes at the basal plate of the oval window.
As a result, these waves are what cause the cochlea's tip to move around the helicotrema at the site of the scala tympani and deplete when they hit a window.
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An illustration of how a particular DNA mutation will most likely affect the polypeptide produced is shown. (Original DNA strand) GTAGTAGTAGTAGTAGTAGTA (Mutated DNA strand) GTAGTAGTAGGAGTAGTAGTA. What type of mutation is illustrated? A insertion B Translocation C Substitution D Deletion
arrange the steps of a g protein signal transduction in the order that they occur.
The receptor is activated by a signal molecule that binds to it. The binding of GTP and the dissociation of GDP activate the G protein. The G protein separates from the receptor, as seen The G protein causes an effector protein to become active, which causes a biological reaction.
G-protein-coupled plasma membrane receptors are known as G-protein receptors (guanine nucleotide-binding protein). When the signal attaches to the receptor, the receptor alters its conformation, activating the G protein (GDP is changed with GTP). Dissociated G protein subunits can activate effector proteins (enzymes, ion channels, etc.), which triggers a response in the cell. GTP is hydrolyzed to GDP, which deactivates the cascade.
Question: arrange the steps of a G-protein signal transduction in the order that they occur.a. The G protein dissociates from the receptor.b. The G protein activates an effector protein, leading to a cellular response.c. A signal molecule binds to the receptor activating it.d. The G Protein is activated by the dissociation of GDP and binding of GTP.e. The receptor changes conformation and binds an inactive G Protein.
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when does the loss of an immune-system gene associated with an inherited immunodeficiency disease usually not pose a serious consequence?
It won’t have an effect if a compensatory function is provided by another member of the multigene family.
What do you mean by Immune system gene?
The immune system is a sophisticated and complex mechanism, but its goal is to find and eliminate invaders. A person's mortality from an infection by a virus, bacteria, fungus, or parasite will happen if they were born with a seriously compromised immune system. Lack of an enzyme causes toxic waste to accumulate inside immune system cells in severe combined immunodeficiency, killing them and severely weakening the immune system.Hence, in any e.disorder or disease if the gene is missing which is the ultimate cause of that particular disease, then the compensatory function must be provided by the other member of the same family of gene to not to pose any serious consequenc
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fungi can fill all of these ecological roles except? group of answer choices pathogen primary producer symbiont decomposer
Fungi can fill all of these ecological roles except primary producer.
Fungi can fill all of these ecological functions except being a primary producer as they not produce their own food because they lack chlorophyll and therefore cannot be primary producers.
In the food chain, a primary producer is a pathogen that generates its own nutrition without having to rely on other organisms for energy. Primary producers extrapolate energy from sunlight, which they transform into chemical energy. Photosynthesis is the name given to this process.
The microbes that acquire their energy from other organisms are called consumers. All animals are consumers who consume other organisms. Fungi, as well as many protists and bacteria, are consumers.
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Should potatos grow on trees, please answer with as many details as possible.
No, potato should not grow on trees.
Tubers, which are specialised roots that store nutrients, carbohydrates, and sugars, are what potatoes are.
In contrast to trees, which are woody, potato plants are herbaceous. They don't have the woody components that give trees their stiffness.
Water, nutrients, and carbohydrates are moved up and down the potato plant from the roots to the topmost leaves through the interior of the entire stem.
The cambium, or inner bark, is the only place where water, nutrients, and sugar are transferred in genuine trees. There is wood inside of this, toward the middle of the tree. The majority of this is cellulose, and even though it isn't growing, it keeps the tree from collapsing as it grows higher. The bark is located outside of the cambium and serves mostly as a barrier.
The wood, cambium, and bark in potato plants are absent.
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the pulmonary artery, which connects the heart to the lungs, is 8.5 cm long and has a pressure
The Pulmonary artery, which connects the lungs to the heart, is 8.5cm long and has a pressure difference over this length of 450 Pa.
A pulmonary artery is a pulmonary circulation artery that transports deoxygenated blood from the right side of the heart to the lungs. The major pulmonary artery or pulmonary trunk from the heart is the biggest, and the smallest are the arterioles that go to the capillaries that surround the pulmonary alveoli.
The pulmonary arteries are blood vessels that transport venous blood from the right ventricle of the heart to the pulmonary microcirculation. In contrast to other organs where arteries deliver oxygenated blood, the blood delivered by the pulmonary arteries is deoxygenated since it is venous blood returning to the heart. The primary pulmonary arteries arise from the right side of the heart and then divide into smaller arteries that gradually divide and form arterioles before narrowing into the capillary microcirculation of the lungs, where gas exchange takes place.
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In addition to the pigments commonly associated with photosynthesis a certain photosynthetic species contains two additional pigment types .which of the following best supports the claim that the species is better adapted to environmental change than other photosynthetic species are?
The additional pigments allow the species containing them to harvest energy from wavelengths of light that the other photosynthetic species cannot use.
What is Photosynthesis Pigment ?A pigment that is found in chloroplasts or in bacteria that can synthesise photosynthetic material is known as a photosynthetic pigment.
Chlorophyll is the most widely distributed pigment in photosynthesis plants. These pigments are chelated forms of cyclic tetrapyrroles.
The three types of pigments that are present as leaves age chlorophylls, carotenoids, and anthocyanins will be represented structurally in more intricate diagrams.
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which two positions in the logo sequence have the most predictable bases, and which bases would you predict at those two positions in a newly sequenced gene?
The prediction at those two positions in a newly sequenced gene is Position 1 (T) and position 2 (G).
They always bring about changes in the genotype of an organism. Regardless of the cause of the change, the DNA sequence will inevitably change when mutated. Sequence logos help predict where certain gene features are located. Gene features such as ribosome binding sites and initiation codons occur in highly conserved portions of the DNA sequence.
In other words, base positions with high letter stacks probably represent features common to a large number of genes. Sequence logos are graphic representations of nucleotide or amino acid sequence conservation. Sequence logos are created from a collection of aligned sequences to show consensus sequences and sequence diversity.
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mitochondria in organisms in the clade have lost their genomes through the process of reductive (degenerative) evolution. these vestigial mitochondria are called .
Mitochondria in organisms inside the clade have lost their genomes via the technique of reductive (degenerative) evolution. these vestigial mitochondria are called Metamonada, mitosomes.
Mitochondria in organisms within the clade have lost their genomes via the process of reductive (degenerative) evolution. these vestigial mitochondria are called Metamonada; mitosomes.
Mitochondria are membrane-sure mobile organelles (mitochondrion, singular) that generate most of the chemical energy to power the cellular's biochemical reactions. Chemical energy produced through the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
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the ________ is a flagellated cell that sweeps water through a sponge's body.
The choanocyte is a flagellated cell that sweeps water through a sponge's body.
Choanocytes( or' collar- cells'), are grouped within chambers. They're the main' pumping stations' for sponger survival. These collar cells have a bitsy central hair- suchlike scourge( flagellum) that laboriously beats to produce a water current.
The abecedarian element of the suite of cells in a sponger body is the choanocyte. Choanocytes are the cells that line the spongocoel and conduits of poriferans. They retain flagella and the collaborative movement of flagella pollutants the nutrients out from the water.
Choanocytes are specialized cells that have a single flagellum girdled by means of a net- suchlike collar of microvilli. Choanocytes join together to produce the choanoderm, where they perform their main functions. The first is to produce a inflow of water and the second is to capture food particulars as they pass through these cells.
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planktonic organisms that spend part of their life in planktonic form, and the rest of their life as either benthos or nekton are called:
Planktonic organisms that spend part of their life as plankton and the rest as nekton are called meroplankton.
Plankton are microorganisms that are found living in waters and are a source of food for other animals. Based on the life cycle of plankton can be divided into two, namely holoplankton and meroplankton.
Meroplankton is an aquatic organism that is part of its life cycle is planktonic and is the most critical phase because it has not been able to escape from predators. These organisms become plankton only when they become eggs and larvae, then they will become marine biota, namely nekton or benthos. Nekton are animals that can swim actively and freely and benthos are organisms that live attached to the seabed. Because only part of their life becomes planktonic, meroplankton are often referred to as semiplankton organisms.
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__act as biological catalysts allowing reactions to occur at the rate necessary
Answer:
Enzymes.
Explanation:
According to Britannica.com, an enzyme is "a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process."
the factor required for growth of a plant or phytoplankton that is available in the least supply is defined as
The factor required for growth of a plant or phytoplankton that is available in the least supply is defined as Limiting factor.
The foundation of the marine food chain, phytoplankton fix over 50 Pg of carbon annually, or about half of the world's CO2 emissions. As a result, these tiny, photosynthetic creatures play a crucial role in regulating the amount of CO2 in the atmosphere and the climate of Earth. Due to phytoplankton's need on sunlight, its ability to repair CO2 is only possible in the upper, sunlit surface of the ocean (that is, the euphotic zone). Due to the high concentration of CO2 in saltwater, phytoplankton development is typically not restricted. Inorganic nutrients including inorganic nitrogen, phosphorus, iron, and/or silica, which are essential for primary production in the ocean, are, however, deficient in the great majority of the surface waters.
Growth of phytoplankton is primarily maintained by nutrient recycling or by the mixing-in of nutrients from deeper waters. However, only a small portion of primary production is supported by "external" or "new" nutrients, and it is the amount of carbon that can be permanently stored in the deep ocean as a result of these nutrients.
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which type of chromosomal mutation will usually have the most detrimental effect on organismal function and why?
A deletion type of chromosomal mutation will usually have the most detrimental effect on organismal function , because there will be no protein product produced for genes in the affected region.
Therefore, the protein produced by the gene could not work effectively. By deletion at least one nucleotide from a chromosomal mutation , a deletion modifies the DNA sequence. Larger deletions can eliminate a organismal function gene or a number of nearby chromosomal mutation , while smaller deletions just delete one or a few nucleotides from a chromosomal . When there is homologous but uneven organismal function across chromosomal sequences, deletions happen. During mitosis or meiosis mutation , similar sequences in the human genome might cross across, shortening a section of the chromosomal sequence.
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Predict the short-term and long-term effects of a newly emerging disease on industrially developing and developed countries
Scientists observed a species of insect in one location and collected data on the coloration of the individual insects. Many years
later, the scientists again collected data on the coloration of the same species in the same location. They noticed a change in the
color of the insects, as shown in the graph.
Number of Insects
of 6 Answered
Changes in Insect Color
second observation
Lighter
What could explain the change in the insects' coloration over time?
OA. The population of the insect decreased.
OB. The color of the surroundings changed.
OC. Females started to prefer darker males.
OD. A new color of predator was introduced.
Answer:
B. The color of the surroundings changed.
Explanation:
Based on the information provided, the most likely explanation for the change in the coloration of the insects over time is that the color of the surroundings changed. The data in the graph shows that the number of insects with lighter coloration increased between the first and second observations, which suggests that the insects may have adapted to better blend in with their surroundings. This could be due to a change in the color of the environment, such as an increase in the amount of light or a change in the predominant colors in the area. Option B, "The color of the surroundings changed," is therefore the most likely explanation for the observed change in the insects' coloration.
describe the environment concerning the function of dna and protein in the early 1940s. what things are the most strikingly different from what we know now?
However, even by late 1940s, DNA had essentially replaced the widespread belief that the gene was a protein rather than a nucleic acid.
Because of the DNA's seeming simplicity in terms of chemistry, biologists had trouble embracing it as the genetic information in the 1940s. We previously understood DNA to be a lengthy polymer made up of just four distinct component kinds that are chemically similar to one another. DNA was initially investigated using x-ray spectral resolution, a method for figuring out the three-dimensional molecular structure of a molecule, in the early 1950s (discussed in Chapter 8). According to the preliminary x-ray diffraction findings, DNA is made up of two strand of the polymer coiled into a helix. One of the key hints that led to a Watson-Crick DNA's structure was the discovery that DNA was double-stranded, which was of significant relevance.However, even by late 1940s, DNA had essentially replaced the widespread belief that the gene was a protein rather than a nucleic acid. Only with the introduction of this paradigm did DNA's capacity for replication and The encoding of information becomes clear. This section looks at the architecture of the Dna strand & provides a broad explanation of how it may store genetic information.
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if pea plants with the genotype ttyy are crossed with pea plants with the genotype ttyy, what portion of the offspring will be expected to have the ttyy allele combination?
. 25% of the progeny are anticipated to carry the TTYy allele combination.
A cross as well as breeding experiment's genotypes can be predicted using the Punnett square, a diagram with squares. This square bears Reginald C. Punnett's name, who created this invention in 1905.
There will be two heterozygous plant crosses: T T Y y
T TT TT y Yy yy
t Tt Tt y Yy yy
The ratio of TT= The ratio of Yy=
25% of all offspring from the cross between TTYy and Ttyy are represented by the ratio of TT= The ratio of Yy= The overall ratio of TTYy =.
As a result, the progeny is heterozygous. 25% of the progeny are anticipated to carry the TTYy allele combination.
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In the last column, estimate the density of each object.
The estimated density of the objects is as follows:
Object B has a density of between 1.0 g/mL and greater than 0.5 g/mL
Object C has a density of between 1.5 g/mL and greater than 1.0 g/mL
Object D has a density of between 1.5 g/mL and greater than 1.0 g/mL
Object C has a density of between 1.5 g/mL and greater than 1.0 g/mL
Object E has a density of between 1.0 g/mL and greater than 0.5 g/mL
Object F has a density of less than 0.5 g/mL
What is the density of a substance?The density of a substance is a measure of the compactness of the materials of an object.
Mathematically, the density of an object is given as the ratio of the mass and the volume of an object.
In order to estimate the density of an object, the object can be placed in a fluid of known density.
The object will sink if its density is greater than the density of the fluid, but will float when its density is equal to or less than the density of the fluid.
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Arteries supplying the same territory are often merged with one another, forming arterial anastomoses.
a. True
b. False
Answer: true
Explanation: no explanation
look at the picture please help !
Noncompetitive inhibition is binding of inhibitor to enzyme at a position other than active site, whereas competitive inhibition is binding of inhibitor to enzyme's active site.
What is an easy way to define enzyme?Enzymes are usually proteins that acts likes a biological catalyst. It quickens a particular internal chemical process in the cell. The enzyme is not degraded during the operation and is used constantly.
What is an enzyme's purpose?The chemical reactions, or metabolism, of our bodies are sped up by proteins known as enzymes. Some compounds are created, while others are broken down. Everything that is alive contains enzymes.
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mr. pratchett has damage to his facial nerve, but not his trigeminal nerve. what would happen to his corneal blink reflex?
If Mr. Pratchett has damage to his facial nerve, but not his trigeminal nerve, his corneal blink reflex will be affected as the cornea will send somatosensory information to the pons via the trigeminal nerve, but due to facial nerve damage, it will be unable to contract the orbicularis oculi muscle.
A loop among the trigeminal sensory nerves and the facial motor (VII) nerve innervation of the orbicularis oculi muscles causes the corneal blink reflex. When a sensory stimulus contacts free nerve endings or mechanoreceptors within the corneal epithelium, the reflex is triggered.
The afferent limb of the blink reflex is facilitated by sensory fibers of the supraorbital branch of the trigeminal nerve's ophthalmic division (cranial nerve V1), while the efferent limb is mediated by motor fibers of the facial nerve (cranial nerve VII).
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clonal selection question 10 options: a) happens only when b cells become plasma cells. b) happens only with b cells that produce ige. c) affects only memory cells. d) occurs with both t cells and b cells.
Clonal selection occurs with both T cells and B cells.
Define clonal selection.
To respond to infections, the body creates B and T cells through a process known as clonal selection. These cells can recognize particular viruses because they each have a different set of receptors. The B and T cells that can identify the intruder grow quickly to produce an army of cells to combat the infection when it enters the host.
Random mutations during clonal expansion result in the development of B cells with higher antibody-binding affinity for their antigens during clonal selection. Secondary immune responses are so successful at preventing reinfection by the same pathogen, which may be explained by the clonal selection hypothesis.
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Which of the following statement is true about asexual reproduction?
A
Only plants reproduce by asexual means
B
All multicellular organisms perform asexual reproduction
C
In asexual reproduction two different sexes are involved
D
Fertilization does not take place in asexual reproduction.
Answer:
D
Explanation:
The answer is D since fertizilation does not take place
Answer: correct answer is D
Explanation: Asexual reproduction is a type of reproduction that occurs without the involvement of two different sexes or fertilization.
In asexual reproduction, a single organism or cell divides to produce offspring that are genetically identical to the parent.
While some plants and many single-celled organisms reproduce asexually, not all multicellular organisms do.
For example, some animals, such as certain species of worms and lizards, can reproduce asexually.
Name the parts of the CER., define the parts, apply CER to any situation
Answer:
C - Claim: what do you stand by/believe in (do NOT use "I think" be confident )
E - Evidence: how your statement is proven (use numbers, text from articles, etc.)
R - Reasoning: how does your evidence match your claim
Ex:
C: Studying for tests will increase your grade
E: "73% of students that studied got an 80% or above on their math test. While 92% of the students that didn't study got lower than an 80%"(made up for example)
R: Studying does improve grade
As many people agree studying for tests will increase your grade. As Billy Bod of Berkely (example name) explains "73% of students that studied got an 80% or above on their math test. While 92% of the students that didn't study got lower than an 80%" This shows that taking some time out of your day to study can be beneficial.
what is the connection between the order the units come in on the dna/rna and the order the amino acids come in?
The sequence of entry of DNA/RNA becomes the sequence of entry of amino acids for proteins.
Protein synthesis is the process of converting amino acids into proteins with the help of DNA. After the RNA is formed from the transcription of DNA, the RNA will be translated into the amino acids that make up the protein.
In the formation of proteins, DNA is a code that instructs cells to produce certain proteins in the order of RNA. The coding sequence is then translated into an amino acid sequence via tRNA which is an adapter for the addition of amino acids to the end of the polypeptide chain. So the order of entry of DNA becomes the order of entry of amino acid units.
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water takes up ______ space as a liquid than it does as solid
Water takes less space as a liquid than it does as solid. As a solid, water has more volume than as a liquid. The water molecules in the solid are an open cage-like form by the hydrogen bonds in the water.
Which occupies more room, a solid or a liquid?With the exception of water, most liquids contain particles that are larger while they are liquid than when they are solid. Liquids allow their constituent particles to move and slide past one another.
What is the name for both solid and liquid?The term "non-Newtonian fluids" applies to them. The amusing name of this material derives from the Dr. Seuss novel Bartholomew and the Oobleck.
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