Engineering uses instruments created by biomedical technology, pharmaceutical covers fields in medicine and forensics helps in analyzing DNA.
What is forensic sciences?Forensic sciences are aimed at identifying DNA samples in a crime scene, whereas engineers create biomedical devices.
Finally, pharmaceuticals are medical professionals that identify drugs and they are able to organize them.
In conclusion, Engineering uses instruments, pharmaceutical covers medicine areas and forensics analyze DNA.
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a radiograph in front of you appears dark. you note that the bones are gray. what is the most appropriate change to make when retaking this film
Decrease the kilovoltage peak(kVp) by 10%
Kilovoltage peak is referred to as kVp. This is the maximum voltage that the X-ray machine will produce during an exposure.
For instance, if 80 kVp is chosen, the maximum power of x-rays produced during this exposure is 80 kilovolts.
The degree of contrast is controlled by kVp means the radiographic contrast decreases as the kVp rises. Increasing kVp also increases the image's overall density (darkness).
Therefore it is best to decrease the kVp by 10% for the next radiograph as a relatively minor change in kVp can have a big impact on the image.
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All the major organs of the body are formed by week 10 of gestation. Which process makes this possible?
Answer:
Explanation:
All major body organs are formed by week ten of gestation.
The process which makes this possible is called differentiation.
Differentiation is the process by which cells, organs, and tissues acquire specialized features during the development of embryonic.
The cell in this part of a plant transport water and nutrients throughout the plant. what is the most likely structure of specialized cells whose function it is to transport water and nutrients throughout a plant
The xylem is a plant structure (tissue) used to transport water and minerals.
What is the xylem?The xylem is a plant tissue that transports water and dissolved micronutrients in higher plants.
Moreover, the phloem is another vascular plant tissue specialized to transport foods produced by the leaves during photosynthesis.
In conclusion, the xylem transports water and minerals.
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The most likely structure of specialized cells whose function is to transport water and nutrients throughout the plant is the xylem.
What is xylem?Water is transported by the plant from the roots to the leaves through the xylem, a conductive tissue. Water enters the plant body through the root cells until it reaches the xylem, which transports the substance throughout the plant's body.
With this information, we can conclude that the xylem and phloem are conductive tissues, constituents of the plant's vascular system, responsible for the transport and distribution of substances throughout the plant
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The same rabbit population is seen from year to year because the food supply is greater in the spring, so it can support a larger number of animals and because it is breeding season.
Select one:
True
False
The same rabbit population being constant because the food supply is greater in the spring and supporting a larger number of animals is a false statement.
What is Population?This is defined as the total number of organisms in a particular place at a given period of time.
Factors such as topography, human influence are other factors except food supply which influences rabbit population which is why False is the correct choice.
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It is a false statement because the population of rabbit increases if food is available in large quantity.
How population of organisms increased?When food is supplied in large quantity then the carrying capacity of the environment is higher so it can accommodate more organism in it which results in the increase of population of that organism.
So we can conclude that it is a false statement because the population of rabbit increases if food is available in large quantity.
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A malignant tumor of bone marrow cells associated with high levels of one of the immunoglobulins, usually IgG, is called:
A malignant tumor of bone marrow cells associated with high levels of one of the immunoglobulins, usually IgG, is called multiple myeloma.
The monoclonal immunoglobulins released by the malignant cells of plasma are IgG and IgA which are around 55% and 20% respectively. In 25 to 30 percent of patients, the plasma cells discharge Bence Jones protein which is monoclonal kappa (κ) or lambda (λ) light chains in the urine. IgD myeloma represents around 1% of cases and is more regular among the patients of Asian provision. Monoclonal light chains in a significant number of these previously purported nonsecretory patients.
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describe flow of genetic formation
Answer:The basic flow of genetic information in biological systems is often depicted in a scheme known as "the central dogma".This scheme states that information encoded in DNA flows into RNA via transcription and ultimately to proteins via translation.
Drag the tiles to the correct boxes to complete the pairs.
Match each type of migration or dispersal to the image of the species that follows it.
[passive dispersal] [one direction only] [daily movement] [one return journey]
Dispersion is the change in the distribution area of populations. Snail: Daily Movements. Seeds: Passive dispersal. Fishes: One return journey. Butterfly: One way only.
What is dispersion?Dispersion is the change of range or distribution area. It refers to the movement of individuals or populations from one place to another one.
Dispersion is the dissemination and distance of some individuals from others. Each individual is considered the dispersion unit, being able to have different mobile stages.
Dispersion ends by causing changes in the distribution area.
Dispersion events might be
Ecological processes → to avoid intraspecific competition for resources. It might involve daily or seasonal migration. Intra-area movements. Biogeographical processes → Involve the individual movement in a wider area. Extra-area movements.There are different types of dispersion,
Jump dispersion → one or a few individuals of the same generation are capable of evading a barrier and getting to a new area where they establish themselves. This is the case of dispersion to an island.Diffusion → A whole population, through many generations, can reach wider areas by exploring and expanding to new favorable regions.
Secular migration → Diffusion events in too many generations. Involves evolution and speciation.
In the exposed example, we can identify the followings,
Snail ⇒ Daily Movements ⇒ dispersion to avoid competitionSeeds ⇒ Passive dispersal ⇒ dispersion by wind to stablish in a new area and avoid competitionFishes ⇒ One return journey ⇒ seasonal migration to look for better conditions. Butterfly ⇒ One way only ⇒ diffussion involving many generationsYou can learn more about dispersion and migration at
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In order for you to enjoy the smell of a flower, molecules called _______ from the flower must land on your olfactory epithelium, which lines the inside of the nose.
In order for you to enjoy the smell of a flower, molecules called Odorants from the flower must land on your olfactory epithelium, which lines the inside of the nose.
When a person breathes in air containing odor molecules, the molecules attach to receptors in the nose and send signals to the brain. Odorants interact with primary epithelium olfactory receptors. Olfactory receptors, a type of epithelial cell with cilia, are found in the olfactory epithelium. These receptors receive the sense of smell, which is then sent to the brain.The sensory neuron connected to the receptor is activated when an odorant connects with a receptor that detects it. Only olfactory stimulus directly communicates with the cerebral cortex; all other sensory information is sent through the thalamus.Additionally, it has been suggested that the nasal mucus plays a role in the process of emulsifying hydrophobic odorant molecules, delivering them to receptor sites.learn more about Odorants here: https://brainly.com/question/14477810
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The term ____________________ describes the chemical substances that make it possible for messages to cross from the synapse of a neuron to the target receptor.
The term Neurotransmitter describes the chemical substances that make it possible for messages to cross from the synapse of a neuron to the target receptor.
What are Neurotransmitters?Neurotransmitters are endogenous chemicals that allow neurons to communicate with each other throughout the body.Chemical synaptic transmission is primarily through the release of neurotransmitters from presynaptic neural cells to postsynaptic receptors.There are a number of neurotransmitters used by the body for different functions, including acetylcholine, norepinephrine, glutamate, GABA, glycine, dopamine, and serotonin.Glutamate is the principal excitatory neurotransmitter used in the brain.GABA and Glycine serve as the major inhibitory neurotransmitters.To learn more about Neurotransmitters,
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An oogonium enters ____________ embryonically and is blocked at _____________ until sexual maturity. Fill in the blanks.
An oogonium enters meiosis embryonically and is blocked at diplotene I until sexual maturity.
Oogenesis is the division of the ovum or egg cell into a cell equipped to additionally create when treated. It is created from the primary oocyte by development. Oogenesis starts in the embryonic stage.
The primary oocytes are delivered by the course of oocytogenesis that happens during the undeveloped stage. Around then each oogonium inside the ovaries of the fetus partitions and enters the underlying phase of meiosis I to turn into the fully matured primary oocyte.
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Why was the transition from “purple bacteria” to “green bacteria” important for the evolution of complex organisms? Use evidence from the video and the chart in your answer.
Answer:
Explanation:
They eventually led to the evolution of more complex life forms, including plants and animals. Green bacteria were important because they allowed some organisms to make energy from the sun. The green bacteria also released oxygen in the atmosphere, allowing for more diverse forms of life on Earth.
To remove noncoding sequences in the pre-mRNA of eukaryotes, multiple snRNPs combine with proteins to form a larger complex called the ___________ .
According to the research, the spliceosome is a larger complex to remove noncoding sequences in the pre-mRNA of eukaryotes.
What is the spliceosome?It is a large complex made up of ribonucleoproteins that remove unnecessary sequences from RNA after transcription.
This is formed during the splicing processes of messenger ribonucleic acid to remove introns that are not going to be translated into proteins.
Therefore, we can conclude that according to the research, the spliceosome is a larger complex to remove noncoding sequences in the pre-mRNA of eukaryotes.
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A cancer takes time to grow because it is the culmination of a series of genetic and genomic changes called _____ that enable certain cells to divide more frequently than normal.
Cancer takes time to grow because it is the culmination of a series of genetic and genomic changes called Mutations that enable certain cells to divide more frequently than normal.
What Are Mutations?Changes to an organism's DNA sequence are referred to as mutations. Mutations can be the result of viral infection, exposure to mutagens, or mistakes in DNA replication during cell division. Somatic mutations—those that take place in body cells—cannot be passed on to progeny, whereas germline mutations—those that happen in eggs and sperm—can.Mutagens are environmental elements that trigger mutations. Radiation, substances, and infectious diseases are a few examples of mutagens. The nature of mutations may be spontaneous.TP53, a gene that generates a protein that inhibits the development of tumors, is the gene that is most frequently altered in all malignancies. In addition, this gene's germline mutations can result in Li-Fraumeni syndrome, a rare, inherited condition that increases the risk of getting some malignancies.
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What are the characteristics of most unsaturated fatty acids found within a human cell?.
The characteristics of most unsaturated fatty acids found within a human cell are deprotonated carboxylic acid and cis double bonds.
With the exception of steroids, fatty acids are carboxylic acids that provide the structural foundation of fats, oils, and all other types of lipids. More than 70 have been found in the natural world.They are typically unbranched, contain an even number of carbon atoms (often 12–20), and can be divided into groups based on the existence and quantity of carbon–carbon double bonds.As a result, saturated fatty acids don't have any carbon-to-carbon double bonds, while monounsaturated fatty acids have one, and polyunsaturated fatty acids have two or more.learn more about unsaturated fatty acids here:
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a girl pulling a sled with a mass of 6.0 kg to the left with a force of 10.0 N at a 30.0 degree angle. There is a 1.5 N force of friction to the right. The force of gravity is 58.8 N.
For the girl pulling a sled with a mass of 6.0 kg t the left with a force of 10.0 N at a 30.0° angle, we have:
a) The normal force acting on the sled is 294 N.
b) The acceleration of the sled is 1.2 m/s².
a) We can calculate the normal force acting on the sled, with the sum of all the forces acting in the vertical direction:
(1)
Where:
W: is the weight force or force of gravity = 58.8 N
: is the component of the applied force in the y-direction
N: is the normal force =?
The vertical component of the force () can be calculated as follows:
(2)
Where:
F: is the applied force = 10.0 N
θ: is the angle (with the horizontal) = 30.0°
By entering equation (2) into (1) we have:
Hence, the normal force acting on the sled is 294 N.
b) The acceleration of the sled can be found with the forces acting on the x-direction:
Where:
a: is the acceleration =?
m: is the mass = 6.0 kg
: is the component of the applied force in the x-direction = Fcos(θ)
: is the force of friction = 1.5 N (it is negative because is in the opposite direction of motion)
Therefore, the acceleration is:
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Please select the word from the list that best fits the definition
______ is measured in half-lives
- remains
- fossils
- mold
- hard
- missing layer
-trace
- radioactive decay
- carbon - 14
Ron is observing an onion cell on a slide under a microscope. He sees chromatids being pulled to opposite ends of the cell. Which phase is he seeing?
A.
anaphase
B.
telophase
C.
prophase
D.
interphase
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In the anatomical position, the body is ________ with the arms straight and at the sides of the body.
In oxidative phosphorylation, energy for the synthesis of atp is directly obtained from the:.
In oxidative phosphorylation, energy for the synthesis of atp is directly obtained from the movement of hydrogen ions through channels in the innner mitochondrial membrane.
How is ATP synthesized?
Depending on the living being, this recharge can occur by: Fermentation or anaerobic cellular respiration. If the energy used is released by the breakdown of organic molecules, such as glucose, in the absence of molecular oxygen (O2).
Oxidative Phosphorylation is one of the metabolic steps of cellular respiration. The presence of ATP molecules and energy production are necessary for the exclusive use of ATP molecules and energy production.
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Read the descriptions of two experiments below.
Experiment 1:
A student tested to see if sunflower growth was affected
by the hardness of the soil. She used control and
experimental groups. She repeated her experiment several
times, and each time found that the hardness of the soil
did not affect the growth.
Experiment 2:
A student tested to see if the temperature of water
affected the growth of cacti. She used control and
experimental groups. Her data supported her hypothesis.
Which experiment most likely has greater reliability, and why?
OA. Number 1, because each experiment got the same results
OB. Number 2, because it has control groups
OC. Number 1, because the experiment disproved the hypothesis
OD. Number 2, because it proved the hypothesis
Both experiments used control and experimental groups. However, experiment 1 repeated the same experiment several times. Option A. Number 1, because each experiment got the same results.
What does replication mean in an experiment?Following the scientific method, an experiment needs to be replicable.
Replication refers to the repeatition of a research study, under different situations, with different subjects and by different researchers to determine the safety of the original findings and the possibility of generalizing them to other situations and participants.
Replicability is the possibility of carrying out the same experiment by other researchers. When repeating the experiment, results should be the same or with a minimal variation. Results heterogeneity should be minimal.
From the exposed experiments, experiment number 1 is more reliable. Option A is correct. Number 1, because each experiment got the same results.
Both experiments used the control and experimental groups. However, experiment 1 repeated the same experiment several times, and every time the results were the same.
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What are two significant ways your skeletal system and your circulatory system support one another
Answer:The bone marrow within your bones form new red and white blood cells and removes dirty blood cells. After making these new blood cells, it sends them to the circulatory system
Explanation:
Some functions of the skeletal system are more readily observable than others. When you move you can feel how your bones support you, facilitate your movement, and protect the soft organs of your body. Just as the steel beams of a building provide a scaffold to support its weight, the bones and cartilages of your skeletal system compose the scaffold that supports the rest of your body. Without the skeletal system, you would be a limp mass of organs, muscle, and skin. Bones facilitate movement by serving as points of attachment for your muscles. Bones also protect internal organs from injury by covering or surrounding them.
Applying this learning to yourself. Identify a time when you might have resented feeling enclosed, but the offer of choices improved your outlook.
A time when I have resented feeling enclosed was : When I was trapped in an elevator due to power outage.
What is the fear of enclosureThe fear of enclosure is known as Claustrophobia ( an anxiety disorder ) and this disorder is present in individuals scared of being in enclosures such as elevators and in crowded rooms. Someone with such disorder ( Claustrophobia ) will tend to avoid enclosures. when I resented feeling enclosed I was assured of getting me out of the enclosure ( elevators ) as power was returned almost immediately and this improved my outlook.
In conclusion A time when I have resented feeling enclosed was : When I was trapped in an elevator due to power outage
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What are generated during the Krebs cycle ?
Electrons
Glucose molecules
Pyruvate molecules
Electron Carriers
Electron Carriers such as NADH and FADH are generated during the Krebs cycle (Option D).
What is the Krebs cycle?The Krebs cycle is the second step of cellular respiration, which allows aerobic cell to generate energy in the form of ATP.
The Krebs cycle generates the reduced forms of the carriers NADH and FADH, which are used in oxidative phosphorylation to generate ATP.
In conclusion, Electron Carriers are generated in the Krebs cycle (Option D).
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An orchid breeder crosses two types of orchids, one that is tall with a petite bloom and one that is short with a large bloom, with the goal of obtaining a tall orchid with a large bloom. The first cross yields all short flowers with petite blooms. What is the expected yield of tall orchids with large blooms if bred from the first generation
6.25% is the expected yield of tall orchids with large blooms if bred from the first generation.
The genetic explanation of the cross:If orchid plants with two pairs of contrasting characteristics like tall/petite and short/large seeds are crossed the F1 progeny would have all tall plants with petite bloom according to the large bloom of dominance. This implies that tallness is dominant over shortness and the petite bloom is dominant over large bloom. In F2 progeny, there would be some tall plants with petite blooms and short plants with large blooms. However, there would be some plants with recombination of characters such as tall plants with large blooms and short plants with petite blooms. This depicts that tall-short and petite/large traits are inherited independently of each other following law of independent assortment. which states that when two traits are taken in a cross the segregation of one trait is independent of the segregation of other characters.
Phenotypic ratio:9/16 Tallshort : 3/16 Tall petite : 3/16 Tall Large : 1/16 Short Petite ( 9:3:3:1).
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Name the bacteria found in root nodule of leguminous plants
Answer:Rhizobium
Explanation:
Leguminous plants belong to the family Fabaceae. These plants have a symbiotic association with the soil bacteria called the Rhizobium.
The value of n, the Hill coefficient, for hemoglobin is about _________ as great as the value for myoglobin.
The value of n, the Hill coefficient, for hemoglobin is about 2 to 3 times as great as the value for myoglobin.
Hill Equation
The two closely related equations that help to explain the binding of macromolecules to ligands are called the Hill equation. It helps to quantify the interaction between various ligand binding sites.
Hill coefficient
It is used to describe the cooperativity of ligand binding. It can be positive and negative depending on the value of the Hill coefficient. If the value of the Hill coefficient is more than one then it exhibits positively cooperative binding and if it is less than one then it exhibits negatively cooperative binding. Then there is the noncooperative binding where the Hill coefficient value is one. As for the hemoglobin and myoglobin, the values are,
Hill coefficient of hemoglobin is 2.7 - 3.Hill coefficient of myoglobin is 1.0.Thus hemoglobin is positively cooperative and myoglobin exhibits noncooperative binding.
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Millions of red blood cells are in the circulation and carry ____________ from the lungs to the tissues. In most cases, every cell of the body is located close to a ____________ , the small structures of the circulatory system where the majority of gas exchange occurs.
Answer:
oxygen and capillary
What is the best definition of physical science?
O a general survey of all science
O the study of matter and energy, and the relationship between matter and energy
O the study of rocks, minerals, and resources
O the study of the environment and interaction between living things
What do you think are the most important risks and benefits of modern agricultural practices? Do you think the benefits outweigh the risks?
FiRsT PaRt of The QuEsTiOn:
The Risks of Modern agricultural practices are-
contributes to a number larger of environmental issues that cause environmental degradation including: climate change, deforestation, biodiversity loss, dead zones, genetic engineering, irrigation problems, pollutants, soil degradation, and waste.
The benefits of Modern Agricultural practices are-
An increase in yield of primary crops and lower food prices is as the result of modern technology like new crop varieties, the use of big data and precision agriculture.
Modern machinery like tractors and threshers when used up in farming make ploughing and harvesting faster.
SeCoNd PaRt Of ThE QuEsTioN:
No, I don't think the Benefits outweigh the RISKS of hurting the nature because we are compromising the needs of the future for more yield of crops. Modern practices may give you faster results but it takes away the fertility of the soil instead, It makes the land infertile. After using these modern practices you may not even have the land to do agriculture with.
Determine which situation is an example of interspecific competition.
A. An herbivore and a carnivore searching for food in the same field.
B. A moose and an eagle hunting in the same territory.
C. Wolves marking their territory.
D. Squirrels hide stashes of acorn nuts from each other.
Wolves marking their territory is an interspecific competition. The correct option is C.
What are interspecific competitions?They are competitions involving organisms of different species. Competition between organisms of the same species is termed intraspecific competition.
When wolves mark their territory, they are doing so against other species of animals that happen to be their competitors. Territorial marking is an indication of competition for space.
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