boardman da, philippeos c, fruhwirth go, ibrahim maa, hannen rf, cooper d, et al. expression of a chimeric antigen receptor specific for donor hla class i enhances the potency of human regulatory t cells in preventing human skin transplant rejection. am j transplant (2017) 17 (4):931–43. doi: 10.1111/ajt.14185

Answer:

the correct answer is altitude believe me I got that one right from the quiz

Answer:

hello good morning ............

Answer:

yes they do, yet they dream in images less than people with sight. They usually have dreams consisting of the other four senses.

Explanation:

I was very curious about this subject when I was younger.

Hope this answers your question:)

Explanation:

polar bear depend on ice so if it gets really hot out of a sudden the melt will melt away and it would be harder for them to live. and for grizzly bears if gets cold all out of the sudden the rivers where they get food turns to ice they'll food which is what they depend on (fish) will die and without food they'll die too.

Grizzly and polar bear evolution may be affected by climate change due to habitat loss, adaptation, competition, and interbreeding, all of which will lead to the evolution of polar bears.

As the climate changes, the habitats that these bears depend on may shift or disappear, such as as the Arctic sea ice melts and polar bears are forced to spend more time on land, where they have less access to food; as grizzly and polar bears are closely related and can interbreed, producing hybrid offspring that could potentially alter the genetic makeup of both species; etc. Both grizzly and polar bears may be able to adapt to changing environmental conditions, and grizzly bears may outcompete polar bears for resources, which could further threaten polar bear populations.

Hence, grizzly and polar bear evolution may be affected by climate change due to habitat loss, adaptation, competition, etc.

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Answer:

The answer is carrying capacity

Answer:

Center: Draw a wolf

Top: Hunt

Bottom: Death

Left: Play

Right: Growth in size

Top Left: Run (Movement)

Bottom Left: Pack Building

Top Right: Cunsumption

Bottom Right: Reproduction

(Delete my answer if wrong.)

Some characteristics according to the given scenario are presented below in the paragraph as well as in the attached diagram.

To somehow be considered a functioning creature, only those living entities would have to have the following important characteristics as well as functions:

Thus the response above is right.

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Answer:

Gravity, Electrostatic force, Magnetic force

Explanation:

A non-contact force is a force that is applied to an object by another object without contact. Gravity, electrostatic force, and magnetic force all don't need two objects to be touching in order for them to work.

On the other hand, an example of a contact force is friction, because it can only occur if two objects are touching. If you want to tell the difference between a contact and non-contact force, just ask yourself if it can occur if the two objects are not touching. If it can occur while two objects aren't touching, it is non-contact, and if it can't, it is contact.

All the options given describe a force that involves contact except for the force exerted by magnets. Thus, the correct option is C.

Magnetic force is the force exerted by magnets. It can be described as the effect exerted on a charged particle due to the magnetic field of the other particle.

It is a consequence of the electromagnetic force, which is caused due to the movement of electrically charged particles.

Two objects that are oppositely charged will have a magnetic force of attraction, whereas two objects that have the same charge will have a magnetic force of repulsion.

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Your question is incomplete. The full question probably might be:

Which of the following is an example of a non-contact force?

(a) The force exerted by us to lift a bucket

(b) push a stationary car

(c) The force exerted by magnets

(d) Force due to friction​

Answer: C,D,E

Explanation:

I just did it on USATestprep

Answer:

because it requires oxygen

Explanation:

aerobic means needing oxygen.

Receptor tyrosine kinases (RTKs) are a family of cell surface receptors that play essential roles in cellular processes, including cell growth, differentiation, and metabolism. The pathways that are activated by receptor tyrosine kinases are Ras and pi3k. The correct options are a and b.

Upon ligand binding, RTKs undergo dimerization and autophosphorylation, which leads to the activation of downstream signaling pathways. The correct pathways activated by receptor tyrosine kinases include:

a. Ras - The Ras pathway is activated when RTKs recruit adaptor proteins, such as Grb2, which in turn bind to guanine nucleotide exchange factors (GEFs), like SOS. This process leads to the exchange of GDP for GTP on Ras, resulting in its activation and downstream signaling events.

b. PI3K - The phosphoinositide 3-kinase (PI3K) pathway is also activated by RTKs. Upon receptor activation, PI3K binds to phosphorylated tyrosine residues on the receptor, leading to its activation. Activated PI3K then converts PIP2 to PIP3, which in turn activates Akt, a crucial kinase involved in cell survival, growth, and proliferation.

c. Wnt - This pathway is NOT activated by receptor tyrosine kinases. The Wnt signaling pathway is primarily initiated by the binding of Wnt ligands to Frizzled receptors, which are distinct from RTKs.

d. TGFb - The transforming growth factor-beta (TGFb) signaling pathway is also NOT activated by receptor tyrosine kinases. TGFb signals through serine/threonine kinase receptors, which are structurally and functionally different from RTKs.

In conclusion, the pathways activated by receptor tyrosine kinases include Ras (a) and PI3K (b).

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Answer:

This barrier prevents the individuals on one side from reproducing with the individuals on the other.

Explanation:

Hope this helps

The relative humidity is approximately 22.9% based on the given wet bulb temperature of 10°C and dry bulb temperature of 14°C.

Wet bulb temperature: 10°C = 50°F

Dry bulb temperature: 14°C = 57.2°F

SVP at wet bulb temperature: 0.284 * \(e^(17.27 * 10 / (10 + 237.3))\)= 0.284 * \(e^(-7.09)\) = 0.284 * 0.000828 = 0.0002356 psi

SVP at dry bulb temperature: 0.284 *\(e^(17.27 * 14 / (14 + 237.3))\) = 0.284 * e^(-5.97) = 0.284 * 0.002562 = 0.0007296 psi

AVP = 0.0002356 - (0.00066 * (57.2 - 50) * 14.7) = 0.0002356 - (0.00066 * 7.2 * 14.7) = 0.0002356 - 0.0686 = 0.000167 psi

RH = (AVP / SVP at dry bulb temperature) * 100

RH = (0.000167 / 0.0007296) * 100 = 0.229 * 100 = 22.9%

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Genotypic ratio: 1:1 (Aa: aa): half affected and half carriers. phenotypic ratio: 1:1 (carrier: affected) - Carriers and affected individuals make up equal numbers.

We ought to take into consideration the inheritance pattern of the condition as well as the genotypes of the guardians in arrange to expect the genotypic and phenotypic ratios of the sibling.

The male with the condition would have the genotype "aa," and the female with the condition would have the genotype "Aa," in the event that the condition could be a latent hereditary clutter.

We can cross the male genotype (aa) with the female genotype (Aa) using a Punnett square:

| A | a | ------------ A | aa | aa | ------------

From the Punnett square, we can observe the following:

chromosomal ratio:

The genotype "Aa" (carriers) is expected to be present in two out of four offspring, or fifty percent.

The genotype "aa" (affected by the condition) is expected to be present in two out of four offspring (50 percent).

phenotypic Ratio :

It is anticipated that two out of four offspring, or 50%, will be carriers (phenotypically unaffected).

2 out of 4 (half) posterity are supposed to be impacted by the condition.

As a result, the anticipated genotypic ratio is one-to-one (Aa: aa), and the anticipated ratio of phenotypes is also 1:1 (carrier: affected).

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The explanation for the kind of turtle found on the Galapagos islands with high vegetation: (C) Turtles possessing genes responsible for long necks had greater chances of survival and were able to attain their reproductive age.

Galapagos islands exhibit two distinct kinds of tortoises which vary in shape. The different shapes can be attributed to the distinct feeding habits that the tortoises have adapted according to the surrounding habitat.

The turtle inhabiting the islands with high vegetation possessed long necks as compared to the second type of turtle which feed largely on grasses and low-lying vegetation. Since the second type of turtle inhabited the region with low-lying vegetation, therefore, raising their heads in order to feed, was not essential to them.

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The sentence that could best be the hypothesis in the given paragraph is: "We postulate that major macromolecules required for rapid DNA replication in early embryos are of necessity stockpiled during oogenesis and that additional embryo-specific factors regulate their deployment following fertilization."

This sentence puts forward a hypothesis about the stockpiling of major macromolecules required for rapid DNA replication during oogenesis and proposes that additional embryo-specific factors regulate their deployment after fertilization

This sentence presents a potential explanation (postulation/hypothesis) for the observed phenomenon of high levels of DNA polymerase alpha synthesis and storage throughout oogenesis in Xenopus laevis.

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The hypothesis in the paragraph suggests that major macromolecules for rapid DNA replication are stored during oogenesis in preparation for deployment after fertilization.

The amount of DNA polymerase involved in oogenesis, oocyte maturation, and embryogenesis in Xenopus laevis was quantified in the study. Our findings imply that, despite no chromosomal DNA polymerase being coupled to the synthesis of specific DNA during oogenesis and early embryogenesis in X, DNA polymerase alpha, which replicates the chromosomal DNA prior to mitosis and cytokinesis, is synthesised at extremely high levels and stored throughout oogenesis.

The sentence that could best be the hypothesis in the given paragraph is: 'We postulate that major macromolecules required for rapid DNA replication in early embryos are of necessity stockpiled during oogenesis and that additional embryo-specific factors regulate their deployment following fertilization.'

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Answer:

They move into and out of living systems

Explanation:

If an overweight adult was overfed as a child, as an adult he or she will have more and larger fat cells.

When a person is overfed, their body creates more fat cells to store the excess energy. These fat cells do not go away, even if the person loses weight later in life. As a result, the person will have more fat cells as an adult than they would have if they had not been overfed as a child.

Besides more amount of fat cells, these person will also have larger-sized fat cells. As one puts on weight, fat cells enlarge (expand).

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There is a 0% chance of having an afflicted daughter in this scenario.

If a man with hemophilia (a recessive X-linked trait) marries a homozygous normal woman, the probability of having an afflicted daughter is 0%.

Since the woman is homozygous normal, she has two normal X chromosomes.

As a result, none of their daughters will be afflicted with hemophilia because they would have to inherit two copies of the hemophilia gene, one from each parent, and the father only has one copy.

However, all of their daughters will be carriers of the hemophilia gene because they inherit one copy of the X chromosome with the hemophilia gene from the father and one normal copy from the mother.

Therefore, there is a 0% chance of having an afflicted daughter in this scenario.

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Answer:

Task 1:

1. The abundance of the chemical elements is a measure of the occurrence of the chemical elements relative to all other elements in a given environment.

2. The relative abundance definition in chemistry is the percentage of a particular isotope that occurs in nature.

3. Percent abundance is the percentage amount of all naturally occurring isotopes of an element.

Task 2:

Crust- Oxygen and Silicon have the most abundance with Oxygen having the most.

Hydrosphere- Hydrogen and Oxygen have the most abundance with Hydrogen having the most.

Troposphere- Nitrogen and Oxygen have the most abundance with Nitrogen having the most.

Task 3:

Potassium is part of the hydrosphere because Potassium readily dissolves in water during weathering of potassium-bearing minerals and enters the hydrosphere for a long time.

In the Troposphere the last 1% is made of argon, water vapor, and carbon dioxide.

I had to do some investigation for this but I hope this helps :)

Answer:

Maybe

Explanation:

It depends. Is the trait harmful? Parents should do their best to avoid harmful traits for their children, but no not if its not harmful

It's fascinating to note that even while you're standing on your head, your body can still pass food through the digestive system. Since it uses muscles, it has nothing to do with gravity.

The nutrients in the food and drinks you ingest are broken down and absorbed by your digestive system for use in vital processes including cell development, repair, and energy production.

Your digestive system is specially designed to carry out its function of converting food into the nutrients and energy you require to exist. After that, it conveniently compresses your solid waste, or stool, for disposal the next time you have a bowel movement.

Here, digestion and nutrient absorption account for almost 90% of the process. Your digestive system as a whole is just about 30 feet long. Enzymes are produced by your liver and pancreas to aid in the digestion of meals.

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Answer:

The definition of a trend is a general direction or something popular. An example of trend is a northern moving coastline. An example of trend is the style of bell bottom jeans.

Explanation:

whats the options??

Answer:

Mutation

Explanation:

A mutation is any change in the nucleotide sequence of the genome of a particular organism. Mutations may be caused by errors during DNA replication or by exposure to environmental mutagenic factors (e.g., ultraviolet radiation, chemical agents, etc). Mutations can be deleterious, neutral or beneficial depending on the environment. When a beneficial mutation occurs in the germline, it may potentially be inherited and subsequently increase its frequency in the population.

Answer:

Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

Answer:

Provides Raw Material and Food.

Most humans get their food from the biosphere indirectly, from farmed vegetables, livestock, fruit and cereals. Some people get food directly from the biosphere e.g. picking fruit, fishing and hunting and trapping animals. Fish can also be farmed in tanks or pens.

Answer:

DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells, distributed among 46 long structures called chromosomes. These chromosomes are made up of thousands of shorter segments of DNA, called genes.

Explanation:

Form and function are intimately related in human cells. The shape and structure of cellular components are often specifically designed to carry out their respective functions effectively. For example, red blood cells are disc-shaped with a concave center, which increases their surface area for efficient oxygen and carbon dioxide exchange. Neurons have long, branching extensions called dendrites and axons, allowing them to transmit electrical signals over long distances.

Epithelial tissues are composed of closely packed cells that form protective barriers and linings in the body. They cover external surfaces (such as the skin) and line internal organs and cavities (such as the digestive tract). In contrast, muscle tissues consist of cells that are specialized for contraction and movement. There are three types of muscle tissues: skeletal muscle, responsible for voluntary movements; cardiac muscle, found in the heart; and smooth muscle, which controls involuntary movements in organs like the intestines.

Epithelial tissues primarily function in protection, absorption, and secretion. They have tightly packed cells with minimal extracellular matrix. In contrast, muscle tissues are specialized for contraction and movement. They contain long, elongated cells (muscle fibers) that can generate force. Skeletal muscle is striated and allows for voluntary movements, while cardiac and smooth muscles have different structures and functions specific to their respective roles in the body.

In summary, the relationship between form and function is evident in human cells. Cellular structures are designed with specific shapes and arrangements to perform their functions efficiently. Epithelial tissues provide protective barriers and linings, while muscle tissues enable contraction and movement. Understanding the relationship between form and function helps us appreciate the intricate design of cells and tissues in the human body.

Answer:

Wdym?

Niacin, Zinc, and Phosphorous?

Explanation:

The p-value for z = 2.0146 is P (Z > 2.0146) = 0.0222.  there is sufficient evidence to suggest that the proportion of deaths due to heart attack during Corona infection is greater than the proportion before Corona.

Proportion of deaths due to heart attack in India before Corona infection was 28.9%

Medical researcher believes that the deaths due to heart attack has increased during Corona infection due to non-availability of ICUs. A medical researcher randomly selected 200 deaths in a city and found that 73 were died due to heart attack. Significance level, α=0.05. We need to test the medical researcher's claim of increased deaths due to heart attack during Corona infection. Let p be the proportion of deaths due to heart attack during Corona infection.

Null Hypothesis H₀: p ≤ 0.289 (Proportion of deaths due to heart attack during Corona infection is less than or equal to the proportion before Corona)

Alternate Hypothesis H₁: p > 0.289 (Proportion of deaths due to heart attack during Corona infection is greater than the proportion before Corona)

We will use a one-tailed z-test for testing the hypothesis at 0.05 significance level.

z = (phat - p) / √(p(1-p)/n)

where phat = 73/200 = 0.365

n = 200

p = 0.289

z = (0.365 - 0.289) / √ (0.289(1-0.289)/200) = 2.0146

The p-value for z = 2.0146 is P (Z > 2.0146) = 0.0222.

Since the p-value (0.0222) < α (0.05), we reject the null hypothesis.

Therefore, there is sufficient evidence to suggest that the proportion of deaths due to heart attack during Corona infection is greater than the proportion before Corona.

Yes, the data suggests that the deaths due to heart attack has increased as believed by medical researcher.

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