Answer:
osteoclasts; osteocytes
Explanation:
which of the following are referred to as mononuclear phagocytes? check all that apply.question 4 options:a) mast cellsb) eosinophils) basophils) macrophages) dendritic cellsf) monocytesg) lymphocytes
Dendritic cells and macrophages that are in close contact to the epididymal epithelium make up mononuclear phagocytes.
How were mononuclear phagocytes discovered?Through the use of various immune cell markers, these cells have been identified as epididymides from transgenic mouse models since their recent discovery. They encircle the epithelium's base and project long, narrow dendrites between epithelial cells in the direction of the lumen of the proximal epididymal areas. Dendritic cells can also be extracted from healthy human epididymides, with some subgroups significantly increasing in number under inflammatory circumstances. Although basal cells have characteristics similar to dendritic cells, these two groups exhibit different protein marker expression and are predicted to have different roles in the epididymis.
Dendritic cells and macrophages are referred to as mononuclear phagocytes
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in an experiment examining the effect of leptin on the hunger of rats, rats in the treatment group are given leptin shots and rats in the control group are given a shot of an inactive substance such as saline.
True, Typically, two groups are used in an experiment, and one is contrasted with the other. The experimental group is the first group, and the control group is the second.
The independent variable that is being tested for is altered for the experimental group because they are given the test sample or go through the experimental process.
The independent variable is held constant for a control group because they do not participate in any experimental testing. On the basis of the aforementioned data, it can be deduced that the rats in the experiment are divided into two groups: those that get leptin are the experimental group, and those who receive no treatment are the control group.
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What happens to this enzyme when the pH rises above 11?
Answer:
The enzyme activity decreases.
Explanation:
Enzyme activity is at its maximum value at the optimum pH. As the pH value is increased above or decreased below the optimum pH the enzyme activity decreases.
Please help quickly due in an hour
Answer: The altitude of Polaris when it is viewed from the top of new york state's mt. Marcy is 44 degrees.
Explanation:
What organisms are able to do photosynthesis?
1. Plants and some bacteria
2. Plants and animals
3. Animals
4. Just plants
My question is about nervous system What are the main features of the anatomy (body parts) and physiology (what do the parts do) of the system? Accessory organs?
The nervous system is divided in two parts:
The central nervous system (CNS)
The peripheral nervous system (PNS)
1. CNS
The CNS consist of the brain and the spinal cord and its main function is to integrate and command the body. It uses the information obtained from the entire body and uses it to coordinate the organism's activity.
The brain is located inside the skull and the spinal cord is located inside the vertebrae. This helps protect the CNS.
The tissue that conform the CNS is grey matter (consists of neurone cell bodies and their dendrites, glial cells and capillaries) and white matter (host the majority of axions which are the long cords that extend from neurons).
2.PNS
The PNS consists of nerves that branch fromm the spinal cord and cover the entire body. It is formed by 12 pairs of cranial nerves, 31 pairs of spinal nerves and some small neuronal clusters called gaglia.
The PNS is the connection between the CNS and the body.
The PNS has no bone protection
Together the CNS and the PNS form the nervous system and transmit signals between the brain and the rest of the body, controlling the ability to move, breathe, see, think and many more.
The 3 accessory organs of the nervous system are:
The meninges: it is a set of 3 membranes that cover the brain and the spinal cord.
The cerebrospinal fluid: it is a lymph-like fluid that acts as a protective cushion for the CNS.
Ventricles: these are cavities that contain ependymal cells and blood vessels
what are similarities and differences between simple diffusion, facilitated and active transport? which requires energy and which does not? which process requires channel proteins for molecules to move through the plasma membrane?
The similarities and differences between simple diffusion, facilitated and active transport is:
Simple Diffusion:- It is the mechanism by which solutes are transported through a semipermeable membrane and down the gradient of concentration in a solution. In this phase of diffusion, where molecules migrate from a higher concentration to a lower concentration, the assistance of membrane proteins is not necessary. This process does not require any energy and channel proteins for molecules to move through the plasma membrane.
Facilitated Diffusion:- Diffusion that is facilitated occurs when molecules move passively across a cell membrane with the help of a membrane protein. Molecules that are unable to freely cross the phospholipid bilayer make use of it. this process also do not require energy.
Active transport:- Active transport is the transfer of dissolved molecules from a location of lower concentration to a region of higher concentration across the cell membrane. The particles use the energy released during respiration to move against the concentration gradient.
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As cell division proceeds in multicellular organisms, the cells differentiate. What is the primary effect of cell differentiation on the organism?.
In multicellular organisms, cell differentiation occurs while cell division occurs. The fundamental impact of cell differentiation on the organism It permits the organism to enlarge itself.
The importance of cell differentiation in multicellular organisms?A multicellular creature needs differentiated cells because they can carry out specialized tasks for the body. Specialization, though, has a price. The trade-off is that differentiated cells frequently lose their capacity to proliferate.Environmental variables can also affect cell differentiation and gene expression. For instance, temperature, salinity, and the amount of available nutrients can all affect how an organism's genes are expressed.The Himalayan rabbit's genes that control fur color are activated and inactivated in response to temperature.To learn more about Cell differentiation refer to:
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you label newly synthesized protein within a cell with a chemically distinct amino acid that is normally not present within the cell. where would you most likely detect complete translation of transcription factors?
complete translation of transcription factors are detected in the endomembrane system.
The protein is fed into the endoplasmic reticulum (ER) as it is translated, or it stays in the cytosol for the duration of translation at this step. If a protein contains a signal peptide, an amino sequence, it is fed into the ER during translation. Proteins that are typically bound for endomembrane system organelles (including the ER, Golgi apparatus, and lysosome) or for the cell's outside must enter the ER at this time. For the remainder of translation, proteins lacking a signal peptide remain in the cytosol. They will remain in the cytosol for all time if no other "address labels" are present. If they are labeled properly, they can be delivered to the mitochondria, chloroplasts, peroxisomes, or nucleus after translation.
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if there is a high concentration of substances inside of thecell and a low concentration of substance ousdieof the cell wich direction will the flow of the concentraton gradiant be
The concentration gradient will be in the direction from the cell to the outside of the cell .
What is concentration gradient and how the direction is from inside to the outside ?Concentration gradient will be from inside of the cell to the outside of the cell that is from high concentration to the low concentration.The concentration of substances inside the cell if given to be more than the concentration of the substance inside the cell.We have always studied that the direction of concentration gradient is from high to low.Since the concentration inside is high so the direction will start from the higher concentration. To the place where concentration is low that is outside of the cell.To know more about concentration gradient visit:
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What type of cell is illustrated here?
the process of balance ion concentration by movement of fluid through a semipermeable membrane is known as group of answer choices osteoporosis. nerve impulse transmission. osmosis. diuresis.
Option C is the correct answer. Osmosis is the process of balancing ion concentration by the movement of fluid through a semi-permeable membrane.
Osmosis can be defined as the process of balancing the concentration of Ions from a Higher concentration to a lower concentration by the movement of a fluid through a semipermeable membrane. This process basically balances out the concentration of the ions where the concentration is lower.
Osmosis is responsible for balancing the concentration of ions from a region where the concentration is higher and the ions move from the higher concentration region to the lower. This makes sure that the environment is in a state of equilibrium.
Hence, Option C is the correct answer.
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In 35 words or fewer, describe the inferences you could make about
the ecology of salmon.
Answer:
Salmon act as an ecological process vector, important in the transport of energy and nutrients between the ocean, estuaries, and freshwater environments
Imagine you are at the cafeteria for lunch. Your nose smells pizza. Your legs move over to where the food is being served. You have to balance the tray holding your plate and drink with both hands, look around for a free seat, and then sit down. This may seem simple; many different parts of your body have to work together to make all of that happen. To make sure your body can work correctly, even when it does many things at once, your body must be carefully organized.
a) explain how the organs worked together.
b) explain how the body works
Explanation:
the smell receptors in the nose would detect the smell from the pizza and send signals as impulses to the brain which identifies this. the brain would then send impulses to the leg muscles to coordinate contractions and relaxations to move the leg. the brain then coordinates both the hand muscles simultaneously and balance the tray in both hands, at the same time the eyes detect light and send impulses to the brain which studies it to find a free seat. following which the leg muscles coordinate to be seated.
the body works as organ systems by which organs that carry out similar functions work together by coordinating their functions.
genetic change in bacteria can be brought about by genetic change in bacteria can be brought about by transduction. conjugation. mutation. transformation. all of the answers are correct.
A mutation alters DNA by altering its base composition, whereas transduction involves the use of a bacteriophage to transport genetic material or DNA from one bacterial cell to another.
What is mutation?Mutation is defined as a change in the nucleic acid sequence of an organism's, virus's, or extrachromosomal DNA's genome.
It can also be defined as a change in the genetic material of a living organism's cell.
There are three types of DNA mutation.
Base substitutionInsertionDeletionThus, a mutation alters DNA by altering its base composition, whereas transduction involves the use of a bacteriophage to transport genetic material or DNA from one bacterial cell to another.
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The principle of ________ states that organisms succeed one another in a definite, determinable order that can be used to recognize a specific time period.
When the water leaves plants through transpiration, what substance are the
molecules?
Answer:
they attract the water molecules still in the plant, helping to pull water up through the stems from the roots
Human height shows a continuous variation from the very short to the very tall. Height is most likely controlled by?.
Most people's height is determined primarily by a combination of genetic variants with modest effects on height, as well as a smaller contribution from environmental factors (such as nutrition).
More than 700 such gene variants have been identified, with many more expected. Human characteristics such as height, eye color, and hair color vary slightly because they are controlled by many genes, each of which contributes a small amount to the overall phenotype. Height, skin color, and eye color are three examples of polygenic traits in humans. Multiple genes control these characteristics. Polygenic traits do not follow Mendel's pattern of inheritance because multiple genes are involved.
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Which type of cellular respiration is more efficient?
Answer:
Aerobic cell respiration is roughly 18 times more efficient than anaerobic cell respiration. Your cells require a lot of energy and are dependent on the high efficiency of aerobic respiration. They quickly die if deprived of oxygen.
rite a brief summary of the process of photosynthesis. be sure to include a description of the reactants and products, the location of the process in the plant and plant cell, and the methods that can be used to measure the rate of photosynthesis.
According to the definition of photosynthesis, the process only occurs in the chloroplasts using photosynthetic pigments like carotene, xanthophyll, chlorophyll a, and b.
Photosynthesis is a process used by all green plants and a few other autotrophic organisms to create nutrition from carbon dioxide, water, and sunlight. Oxygen is a byproduct of the photosynthesis process. In the presence of sunlight, which serves as a catalyst, the process' reactants are carbon dioxide and water, while its output is glucose and oxygen. By confining a leaf in a closed, transparent chamber and monitoring the decline in carbon dioxide content as a function of time, the rate of photosynthesis may be calculated.
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???? A mother with type O blood and a father with type A blood have three children
Blood type can also be called blood group. The most commonly used blood grouping system is the ABO blood group system. According to it, there are four types of blood groups: A, B, AB and O. This classification is made on the basis of presence or absence of certain antibodies and antigens.
Genotype is defined as the genetic composition of an organism. It depicts the complete set of genome.
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Please help this is for a biology test!!
A molecule that has more than two carbon atoms is called a(n) ________.
Answer:
ethylene
Explanation:
It is the simplest of the alkenes, consisting of two carbon atoms connected by a double bond.
Its gloomy outside like my soul just turned T-T brainly why why why why ??!!!
Answer:
The answer is A
Explanation:
because yeah
Explanation:
the for the question is A
the liver is a glandular organ that functions to secrete many substances to the blood or digestive tract, detoxify chemicals and synthesize molecules utilized by all the cells of the body. what do you think is its likely histologic composition?
The liver with its histologic composition as mostly epithelial tissue, is a glandular organ that functions to secrete many substances to the blood or digestive tract, detoxify chemicals and synthesize molecules utilized by all the cells of the body.
What is an epithelial tissue?
An Epithelial tissue is one of the four tissue types in living things. Epithelial tissues are thin tissues that cover all the exposed parts of the body form ing the external skin, the inner lining of the mouth, the ventricular system of the brain, the lining of hollow parts of every organ such as the heart, lungs, eyes, ears, secretory glands, the urogenital tract, as well as the ventricular system of the brain and central canals of the spinal cord, digestive tract etc.
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As part of an experimental procedure, an organ is removed from an animal. Which of the following would most likely be the result of this procedure? Responses The cells of the organ would begin to multiply. The cells of the organ would begin to multiply. The organism would not be affected. The organism would not be affected. The system from which the organ came would fail. The system from which the organ came would fail. The tissues in the organ would take on new functions .
If an organ is removed from a system, the system from which the organ is removed is bound to fail.
Level of organization of lifeLife is organized as cells, tissues, organs, and systems.
The basic unit of life is the cell. Above this is the tissue. Tissues are made from 2 or more cells that come together to perform similar functions.
Two or more tissues performing similar roles come together to form different organs. A system consists of different organs performing a common role.
Each organ in a system is a unit of production. It is a division of labor in a production process.
If an organ is not in place, the production process will halt.
Thus, the removal of an organ from a system will lead to the failure of the system from which the organ was removed.
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A neurologist is studying a patient who experienced brain damage and is suffering from odd emotional states. In this image, which part of the brain might the doctor especially study for damage? Question 13 options: 1 7 3 2
The part of the brain that the doctor might especially study for damage that occurred is the part labelled 1.
What is brain?The brain is part of the central nervous system that is made up of cells and tissues which helps in the integration of sensory information and direction of motor responses in the body.
The brain is divided into four major lobes which include the following:
frontal lobe, parietal lobe,temporal lobe , and occipital lobe.The frontal lobe is part of the brain that is located anterior or at the front of the head and it is the largest of all the lobes.
It is considered as the emotional control center and home to our personality. Therefore an injury to the frontal lobe of the brain which is labelled 1 in the picture will lead to the patient suffering from odd emotional states.
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Define homeostasis. Explain how the human body would respond to having a higher than normal level of sugar in the bloodstream.
The self-regulating process by which an organism can maintain internal stability while adjusting to changing external conditions is known as homeostasis.
To provide energy to the body's cells, the bloodstream transports glucose, a type of sugar produced by the digestion of carbohydrates and other foods. Glycogen is primarily stored in the liver as unutilized glucose.
The hormones insulin, glucagon, and others fluctuate to maintain normal blood sugar levels. Blood sugar levels can fall too low called hypoglycemia or rise too high called hyperglycemia if either too little or too much of these hormones are present.
After a meal, blood glucose levels typically rise. Cells in the pancreas release insulin when blood sugar levels rise. This causes the body to absorb glucose from the blood and returns blood sugar levels to normal. The pancreas other cells release glucagon when blood sugar drops too low, causing the liver to convert stored glycogen back into glucose and release it into the blood. As a result, blood sugar levels return to normal.
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Choose one abiotic and one biotic factor from your ecosystem. Imagine that they were suddenly removed. How would your ecosystem change? Tell me which factors you removed and how would your ecosystem change.
Answer:
Abiotic factor: Water | Biotic factor: Trees
Explanation:
Abiotic factors are non-living components within an ecosystem. Biotic factors are living organisms within an ecosystem. By removing the abiotic factor, water, an ecosystem will drastically decline. Just like humans, plants and animals depend on water. When drought hits, food supplies can be reduced and habitat compromised. Damage may be temporary, and habitat and food supplies may return to normal once the drought is over. By removing the biotic factor, trees, an ecosystem will suffer from material loss and climate change. Without trees, the land would be hot and dry, and dead trees would inevitably lead to large wildfires. This causes sun-blocking soot to blanket the skies, leading to years of crop failure and global famine.
when the his- salmonella strain used in the ames test is exposed to substance x, no his revertants are seen. however, when rat liver enzymes are added to the cells along with substance x, his revertants do occur. rat liver enzymes alone cannot induce reversion. how can you explain this result?
The result of this experiment is well explained by the fact that substance X is a potential carcinogen that processes the substance and transforms them into other components along with rat liver enzymes.
What is the Ames test?The Ames test may be defined as a type of test that is significantly utilized in order to examine the capability of generating mutagens with the presence of a chemical or an enzyme.
According to the context of this question, the positive Ames test indicated that the chemical is mutagenic in nature and can function as a carcinogen. This is due to the fact that cancer is directly linked with the mutation.
Therefore, the explanation of the obtained result along with the definition of the Ames test is well described above.
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What could you add to this model to show the role of photosynthesis and cellular respiration in the
cycling of carbon among the biosphere, atmosphere, hydrosphere, and geosphere?
Answer:
The Carbon cycle is the biogeochemical cycle by which carbon is exchange among the biosphere, Pedosphere, geosphere, hydrosphere, and atmosphere of the Earth
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