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An allogenic skin graft allows a person with a burn to receive skin from a donor. Patients are often given drugs to suppress their immune system. Why would a patient need to be given these drugs

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Answered by answersmine AT 22/10/2019 – 03:16 AM

The person receiving the skin after the burn would be given these drugs most of the time because they dont want a ton of blood coming out of your body as your panicking or just sitting there feeling the pain which will make your heart beat faster in result of blood all over the place.

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How can a person boost the immune system? Complete full body exercises Target specific muscles groups Do push-ups until fatigued Sleep

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Answered by answersmine AT 22/10/2019 – 03:54 AM

I would think it would be full body exercises because you are covering the entire body but I’m not too sure. I can’t really see how it would help your immune system because the immune system is what protects your body from disease, virus, etc…

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Considering the effects of nutritional deficiencies on the immune system, severe deficits in calories and protein lead to deficiencies in the formation of which immune cells?

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There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

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Lymphomas four types of cancers that affect ______? A the immune system B nervous system C cognition and reasoning D eyesight

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The goal of the public health system is to maintain and strengthen the health and well-being of people.

This system comprises of all public, voluntary and private organizations that contribute to achieving this goal.Implement laws and regulations that secure health and ensure safety.  Some of the function of the public health is to ensure qualified public and personal health care staff., to develop plans and policies, to identify and investigate health issues and health hazards in the people…

According this definition and explanation, disease reporting is responsibility of public health. Correct answer: D Disease reporting is one way of ensuring and maintaining general public health.

All other options are personal responsibilities.

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Helper t cells ________. often function to decrease the immune response release b7 proteins function in the adaptive immune system activation bind tightly to target cells and release a lymphotoxin called perforin

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In tropical rain forest, the animals will have to deal with higher temperatures and greater rainfall. One example of an adaptation they might need is a thin, water-proof coat. This will prevent heat from becoming trapped inside their fur/hair/feathers, and the water-absorbing coating will allow water to stick to the inside of the coat without being absorbed, where the water will absorb the heat instead of themselves, and will cool the through evaporative cooling (heat release through evaporation)

In a deciduous forest, there is much colder temperatures, and significantly less rainfall. These animals would likely want a thicker water-proof coat. This is because the thicker coat would allow heat to become trapped, keeping them warm in the winter, and the water-proof coating prevents water from freezing in their fur, making them colder.

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Which of the following is not a metabolite of ethanol? acetaldehyde acetone Acetic acid propanol all of the above are metabolites of alcohol 2/ When a person builds up tolerance to a drug it means that: she must take larger doses to continue to realize the same effects she will undergo withdrawal if he stops taking the drug she will no longer be affected by the drug she must stop taking the drug right away she will not develop an immune response to the drug

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This is completely false.

Legal Medications can come with many risks.

For example, oxycodone, a painkiller, is very similar to heroin in the risk of addictiveness as well as abusability.

The same being with amphetamines (adderall/dexedrine) to meth.

Just because it is legal, does not mean it is any safer or more dangerous.

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A properly functioning immune system is responsible for ______.

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There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

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Which statement is the most important reason for warming up and cooling down? It reduces your risk of injury. It increases response time. It improves immune function. It stabilizes you emotionally. 1 points Question 2 Which term describes the promotion of health products, services, or practices of questionable safety, effectiveness, or validity for an intended purpose? quackery sham scam fishing 1 points Question 3 Which precaution should you take to protect yourself from the consequences of too much sun? Wear a hat, such as a baseball cap. Apply sunscreen only during the summer. Wear sunglasses that block at least 50 percent of the sun’s ultraviolet rays. Put on sunblock 30 minutes before going in the sun. 1 points Question 4 Which is the more questionable phrase when used in advertising? secret formula FDA-approved medically proven variation in efficacy 1 points Question 5 Which statement is true of cooling down after physical activity? A cool-down is a period of semistrenuous activity after physical activity. Cooling down increases blood flow to the muscles and decreases body temperature. Cooling down increases the lactic acid in your muscles, helping to protect them from injury. You should cool down for about 5 to 10 minutes after being physically active. 1 points Question 6 Which statement about dressing for physical activity is true? Clothes should be tight and lie flat against skin to prevent chafing. Rubberized or plastic clothing prevents you from sweating. In general, you should wear heavier weight clothing to keep muscles warm and flexible. You should wear a hat in cold weather and in sunny weather. 1 points Question 7 Which question is not relevant when evaluating advertisements? What is the product’s purpose? Who is the target audience? What is being advertised? How expensive is the product? 1 points Question 8 Which characteristics should you look for when choosing a shoe for physical activity? a sole that is exactly the same height at the heel and the toe a cushioned heel cup to protect the heel from impact a firm, molded inside to stabilize the foot a sole at least as wide as the upper part of the shoe 1 points Question 9 Which statement is true of electrolytes? The major electrolytes lost in sweat are hydrogen, potassium, and iron. Electrolytes help carry electrical impulses from one cell to another. Electrolyte replacement during physical activity is beneficial. Electrolyte concentrations decrease due to the loss of body water. 1 points Question 10 Which statement is true of warming up before physical activity? A warm-up is a period of semistrenuous activity that prepares the body for physical activity. A warm-up increases the amount of oxygen to your brain by raising your body temperature. You should warm up for about 15 to 20 minutes before being physically active. Stretching is important for flexibility and keeps your muscles from tightening up during physical activity.

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This is completely false.

Legal Medications can come with many risks.

For example, oxycodone, a painkiller, is very similar to heroin in the risk of addictiveness as well as abusability.

The same being with amphetamines (adderall/dexedrine) to meth.

Just because it is legal, does not mean it is any safer or more dangerous.

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How are bacteria beneficial to the body? a. they provide us with needed nutrients c. they invade sterile regions in our body b. they form biofilms d. they fight the immune system

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The synthesis of protein takes place in two basic steps: transcription and translation. At the time of transcription, the information encrypted in DNA is reproduced in mRNA and the mRNA moves out of the cell’s nucleus into the cytoplasm. After this the process of protein synthesis, that is, translation takes place. The following are the steps for protein synthesis:  

1. RNA polymerase unzips DNA and free RNA nucleotides join DNA to form mRNA.  

2. mRNA is transported from the nucleus of the cell to the ribosomes of the cell.  

3. mRNA joins the ribosome, and the anticodons from tRNA join mRNA to produce a chain of amino acids.  

4. A chain of amino acids is formed from peptide bonds, creating a protein.  

5. Once the protein is made, the gene for a particular trait is expressed.  

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Badwater Basin in Death Valley is covered with white salt crystals. What is likely to be true of this area? A.The white salt crystals have a high albedo. B.The white salt crystals are immune to insolation. C.The white salt crystals have no heat capacity. D.The white salt crystals absorb most radiation.

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Answer:

Each parent had at least one allele for white petals.

Explanation:

According to the law of inheritance, it is necessary that each offspring must inherit one allele from each of its parents for a given gene.

Since in the given question, a rose plant inherits a white flower petal allele, it is necessary that the plant must have an inherited one allele from each parent, therefore, the two parents must have had at least one allele for white petal.

The cross is shown below ,

W—> red petal

w —-> white petal

Atleast one allele => Ww X Ww —> WW Ww Ww ww

More than one allele => ww X ww —-> ww  

Here ww is the offpsring with white petals.

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Which immune system cells are attracted to the chemicals secreted by helper t cells?

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Which immune system cells are attracted to the chemicals secreted by helper t cells?

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PLZZ HELP FASSSSST 1. Which of the following eyects would you expect if red blood cells were shaped like neurons? (1 point) They would not be able to move as easily through capillaries. They would more easily carry out gas exchange in the alveoli. They would not need to be transported through the body. They would become more eyective at picking up urea discarded by body cells. 2. Which of the following is not a function of the skeletal system? (1 point) supports the body works with other body systems to allow movement manufactures new blood cells sends signals to the brain 3. Which of the following body systems are involved in the first line of defense of the immune system against infection? (1 point) integumentary, digestive, respiratory nervous, circulatory, skeletal muscular, endocrine, urinary urinary, skeletal, integumentary 4. Which of the following sets of structures would be involved in ridding the body of unwanted urea? (1 point) sensory neuron, interneuron, spinal cord alveoli, atrium, cilia capillary, nephron, ureter brain, esophagus, small intestine 5. An infectious disease is a disease that (1 point) is caught because the weather turns cold. is caused by pathogens. can be spread only by bacteria. cannot be cured. 6. Which of the following statements is true regarding infectious agents? (1 point) Infectious agents are all too small to be seen without a microscope, and none can be classified as living. All infectious agents are living because they are all classified as microorganisms. Of all the infectious agents, only viruses are considered living because they actively inject their DNA or RNA into host cells. Viruses cannot be treated with antibiotics because they are not living organisms. 7. Which discovery in the 1800s led to the development of germ theory? (1 point) Vaccines could prevent a disease. Antibiotics exist that can be given to counteract an infection. Infection rates decline when health care professionals wash their hands in between seeing patients. Some diseases, such as cancer, are caused by chemical factors. 8. Follow a carbon atom in a piece of bread eaten by a boy. Which of the following describes a path that this atom could take? (1 point) mouth esophagus stomach large intestine blood body cell mouth esophagus stomach small intestine blood body cell mouth large intestine esophagus stomach blood body cell mouth esophagus small intestine stomach blood body cell 9. Which of the following sets of structures is innervated by the somatic nervous system? (1 point) esophagus, stomach, small intestine atrium, ventricle, arteries biceps, triceps, quadriceps diaphragm, bladder, large intestine 10. Which of the following cell types would you expect to increase in number azer a person becomes infected with a pathogen? (1 point) sensory neurons white blood cells epidermal cells red blood cells

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There are four variables which govern changes in population size.
births
deaths
immigration
emigration

A population gains individuals by birth and immigration and loses individuals by death and emigration.

Biotic Potential
Populations vary in their capacity to grow. The maximum rate at which a
population can increase when resources are unlimited and environmental
conditions are ideal is termed the population’s biotic potential. Each
species will have a different biotic potential due to variations in
the species’ reproductive span (how long an individual is capable of reproducing)
the frequency of reproduction (how often an individual can reproduce)
“litter size” (how many offspring are born each time)
survival rate (how many offspring survive to reproductive age)

There are always limits to population growth in nature. Populations
cannot grow exponentially indefinitely. Exploding populations always
reach a size limit imposed by the shortage of one or more factors such
as water, space, and nutrients or by adverse conditions such as disease,
drought and temperature extremes. The factors which act jointly to
limit a population’s growth are termed the environmental resistance. The interplay of biotic potential and density-dependent environmental resistance keeps a population in balance.
Carrying Capacity
For a given region, carrying capacity is the maximum number of
individuals of a given species that an area’s resources can sustain
indefinitely without significantly depleting or degrading those
resources. Determining the carrying capacities for most organisms is
fairly straightforward. For humans carrying capacity is much more
complicated. The definition is expanded to include not degrading our
cultural and social environments and not harming the physical
environment in ways that would adversely affect future generations.

For populations which grow exponentially, growth starts out slowly,
enters a rapid growth phase and then levels off when the carrying
capacity for that species has been reached. The size of the population
then fluctuates slightly above or below the carrying capacity.
Reproductive lag time may cause the population to overshoot the carrying
capacity temporarily. Reproductive lag time is the time required for
the birth rate to decline and the death rate to increase in response to
resource limits. In this scenario, the population will suffer a crash
or dieback to a lower level near the carrying capacity unless a large
number of individuals can emigrate to an area with more favorable
conditions. An area’s carrying capacity is not static. The carrying
capacity may be lowered by resource destruction and degradation during
an overshoot period or extended through technological and social
changes.

An example of dieback occurred in Ireland after a fungus infection
destroyed the potato crop in 1845. During this potato famine
approximately 1 million people died and 3 million people emigrated to
other countries. Increased food production due to improved agricultural
practices, control of many diseases by modern medicine and the use of
energy to make historically uninhabitable areas of Earth inhabitable are
examples of things which can extend carrying capacity. The question is
how long will we be able to keep increasing our population on a planet
with finite size and resources?

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Which of the following are functions of the immune system? Select all that apply. A. Bones produce extra white blood cells to increase it’s defense against germs B. The body filters the blood for waste materials C. Cell membrane keeps germs fro entering the cell D. Lymphocytes create antibodies that attach to the germ.

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Answer;

D. Its body cells would have 40 chromosomes, and its gametes would have 20 chromosomes

Explanation;

-A diploid number of chromosomes means that a cell has two sets of chromosomes in their nucleus, while haploid number of chromosomes means that the cells have only one set of chromosome pairs.

-Somatic cells or body cells divide by mitosis, which means the diploid number of chromosomes is always retained, as the daughter cells are similar to the parent cells. In gametes cells on the other hand, they are haploid since they result from the process of meiosis which halves the number of chromosomes.

-Therefore, in this case,the body cells would have 40 chromosomes, which is the diploid number, and its gametes would have 20 chromosomes, the haploid number.

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