What is needed for your immune system to create an appropriate antibody to protect against a particular disease?

Biology

1 answer:

egoroff_w [7]3 years ago

8 0

Answer:

the immune system needs B cells and memory B cells form into memory cells so that remember the same pathogen and the antibody used to take it down for faster antibody production in future infections when most of the same antigens infect the body again.

Explanation:

When the body senses foreign substances like antigens, the immune system works to recognize the antigens and get rid of them. B Cells that have a certain antibody codes/proteins for the specific antigen are triggered or activated by T cells to make the specific antibodies, or immunoglobulins, to use against the antigens, by locking onto the antigen and putting the antibodies into the antigen directly.

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Based on their observations and the data they collected, the Grants concluded that evolution by natural selection had occurred i

aalyn [17]

Answer:

C. Beak size is an inherited trait in the finch population under study.

D. Birds that could eat larger, tougher seeds survived and reproduced during the drought.

E. Beak size varies among the birds in the finch population under study.

Explanation:

The presence of genetic variations among the individuals of a population is required for natural selection to be operative. Natural selection targets the beneficial genetic variations present in the population. Natural selection refers to the differential reproductive and survival success of organisms of a population due to some beneficial genetic traits. These organisms with beneficial genetic traits are able to survive and leave more progeny under prevailing conditions.

If the natural selection has occurred in the ground finch population for the beak size, the beak size should be a genetic trait since natural selection works on genetic traits only. The finch population should have variations with respect to the beak size. The finches having the larger beak size that enabled them to feed on larger, tougher seeds should have higher survival and reproductive fitness during the drought.

Under these conditions, natural selection would favor the finches with larger beak size and would eventually result in an increase in the average beak size of the future generations.

4 0

3 years ago

In bacterial cell division, the cell divides into two nearly equal halves. This process is referred to as:

Step2247 [10]

In bacterial cell division, the cell divides into two nearly equal halves. This process is referred to as mitosis.

To answer the question, we need to know what cell division is

<h3>What is cell division?</h3>

This is the process in which parent cells divide into two or more daughter cells.

There are two types of cell division namely

Mitosis and
Meiosis

<h3 /><h3>Mitosis</h3>

Mitosis is the process in which non-reproductive (somatic) parent cells divide into two daughter cells that have the same number of chromosomes as the parent cell.

<h3>Meiosis</h3>

Meiosis is the process in which reproductive parent cells divide into four daughter cells with half the chromosoes of the parent cells.

From this, we see that cell division in which the cell divides into two nearly equal halves is refered to as mitosis.

So, in bacterial cell division, the cell divides into two nearly equal halves. This process is referred to as mitosis.

Learn more about cell division here:

brainly.com/question/14439902

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2 years ago

The earliest member of our own species can be referred to as

fenix001 [56]

Homo sapien. Also known as Lucy

7 0