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3 years ago

A natural killer (NK) cell is a type of____ that has _receptors extending from its plasma membrane.

1 answer:

7 0

Answer: A natural killer cell (NK) is a type of lymphocyte that has an activating and inhibitory receptors extending from its plasma membrane

Explanation: A natural killer cell (Nk) is a type of lymphocyte (a white blood cell) that has an AC and inhibitory receptors. It plays a major role in host rejection of both tumours and virally infected cells. It contains specifical protein such as perforin and granules.

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Water has many of its properties and can act as a major liquid in our bodies due to its high specific heat. However, if water ha

jeka57 [31]

The claim which would not be supported by the change in specific heat capacity of water include reduction in body temperature and dehydration.

<h3>What is Specific heat capacity?</h3>

This is defined as the quantity of heat needed to raise a substance's temperature by 1 degree Celsius.

If water has a low specific heat capacity then the body temperature will increase which will lead to an increase in dehydration.

Read more about Specific heat capacity here brainly.com/question/21406849

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2 years ago

Sabrina and Chris are researching underwater mountains called seamounts. Sabrina says that they are formed by divergent plates,

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Seamounts are underwater mountains that rise thousands of feet from the seafloor. These are mostly volcanic in origin and are found on oceanic crusts near mid-ocean ridges. As these seamounts slowly move away from the oceanic ridge due to seafloor spreading, they gradually subside due to their enormous mass.

So according to the question, Sabrina has a better claim because her claim is based on research and logic.

Answer is option A.

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3 years ago

Read 2 more answers

The energy that is used by almost all living things on our planet comes from the sun. it is captured by plants, algae, and some

Klio2033 [76]

Photosynthesis, the process which uses light energy to power the combination of carbon dioxide and water to form glucose and oxygen.

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3 years ago

Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers;

gogolik [260]

Answer:

187.5 or rounded off to 188 white, terminal flowers

Explanation:

Let red=R and white=r where R>r; axial=A and terminal=a where A>a

The parents are true-breeding which means that they are homozygous.

P: RRAA x rraa

F1: RrAa

We then cross two plants from the F1 generation

RrAa x RrAa

To find out the probability we look at the different traits individually

Rr x Rr

yielding 1/4 RR (red), 1/2 Rr (red), 1/4 rr (white)

Aa x Aa

yielding 1/4 AA (axial), 1/2 Aa (axial), 1/4 aa (terminal).

We determine which F2 genotypes would allow for red, terminal flowers.

RRaa and Rraa

Then we use the multiplication rule to determine the probability of these occurring

RRaa: 1/4 x 1/4 = 1/16

Rraa: 1/2 x 1/4 = 1/8

Next we use the addition rule

1/16 + 1/8 = 3/16

To find out the number of these plants within the 1000 F2 plants we multiply the probability with 1000

3/16 x 1000= 187.5 red, terminal flowers

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3 years ago

Which of the following is not a type of plate boundary?

Sphinxa [80]

C) Tectonic is not a type of plate boundary

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4 years ago

A natural killer (NK) cell is a type of________ that has _____receptors extending from its plasma membrane.

A natural killer (NK) cell is a type of____ that has _receptors extending from its plasma membrane.