All categories

2 years ago

Besides antibodies _________ are made after an active immune response.

Biology

1 answer:

MAXImum [283]2 years ago

6 0

Answer:

Memory cells

Explanation:

Active immunity is defined as immunity to a pathogen that occurs following exposure to said pathogen. When the body is exposed to a novel disease agent, B cells, a type of white blood cell, create antibodies that assist in destroying or neutralizing the disease agent.

You might be interested in

if a man cuts his hand and blood does not clot, which one is present in less number in blood among rbc, wbc and platelets

Schach [20]

Answer:

platelets

Explanation:

platelets clot to plug the holes in the blood vessels and stop the bleeding . if the blood doesn't clot it means there is a low amount of platelets

4 0

1 year ago

ancestors of giraffes with shorter necks could not reach branches high up in trees for food. this led to selection for longer-ne

hichkok12 [17]

With shorter necks, giraffe ancestors could not reach food-containing branches on tall trees. This resulted in the directional selection of giraffes with longer necks.

<h3>Why is choosing a direction necessary? </h3>

It nearly appears obvious that the giraffe's long neck developed as a result of a lack of food in the lower branches of trees. The giraffe has a significant advantage because it is taller than any other mammal and can feed where few others can.

When compared to modern giraffes, the giraffe's ancient predecessors had a shorter neck. The plants that were lying at a higher level were inaccessible to them. Giraffe phenotypes have changed in various ways, and now have long necks to reach vegetation that is higher up. The extreme form is chosen above other features in directional selection. It was decided to choose the long-necked giraffe over the short-necked.

To know more about direction selection for longer necked giraffes visit:

brainly.com/question/3738222

#SPJ4

7 0

1 year ago

The forelimbs of mice, bats, and whales all have a similar bone structure. The similarities are an example of which type of stru

lawyer [7]

The Mitochondria structure

8 0

2 years ago

Why does weather vary from day to day? A. Because the rotation of the Earth causes the atmosphere to expand and contract as it n

777dan777 [17]

Answer:

B. Because weather is a complex interaction among many different variables that are constantly changing

Explanation:

5 0

2 years ago

A man has blood type O, Rh negative. These are both recessive traits. He is married to a woman who has blood type A, Rh positive

frosja888 [35]

IAIARr is the genotype of the mother.

<h3><u>Explanation</u>:</h3>

The blood groups are the heredity characteristics of the individual which governs what antigen will be present in blood and what antibody will be present in the blood plasma.

The blood group has the genetic characteristics where A and B are dominant characters and O is the recessive character. Co Dominance is seen in case of blood grouping. Similar characteristics is seen with Rh character too where Rh positive is the dominant character and Rh negative is recessive.

The father has both the recessive characteristics. So he needs to be genetically homozygous which means that he has genetic setup of IoIo and rr.

Two child born has character of A blood group and rh positive, but the other child is A blood grouped and rh negative.

So the mother ought to be heterozygous with respect to Rh group, but she is homozygous with respect to blood group.

So her genetic setup is IAIARr.

4 0

2 years ago