Answer:
A niche is how the species act and behave in their environment
Explanation:
1. It can remember the aggressor and acts specifically against certain antigens. ... This way the defense<span> responses of the adaptive immune system are more efficient and faster than those of the innate </span>defense<span>, if the antigen is already known.
2. F</span><span>evers may also slow down the reproduction of some bacteria and viruses. Whether the mechanism is as complex as fever and inflammation or as simple as </span>physical barriers and phagocytosis, all nonspecific defenses provide the body with general protection<span> against foreign invaders.
3. </span>Antigens<span> are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. ... Your </span>immune system<span> learns to see these </span>antigens<span> as normal and usually </span>does<span> not react against them. INNATE </span>IMMUNITY<span>. Innate, or </span>nonspecific<span>, </span>immunity<span> is the </span>defense system<span> with which you were born.
4. </span><span>Antibodies attach to a </span>specific<span> antigen and </span>make<span> it easier for the immune </span>cells<span> to destroy the antigen. T lymphocytes attack antigens directly and help control the immune </span>response<span>. They also release chemicals, known as cytokines, which control the entire immune </span>response<span>.
Hope this helps.</span>
Answer:
Humans have a heart with two atria and two ventricles that pushes blood in one direction. Some animals have hearts similar to humans but, other animals have only one atrium and one ventricle or a cardiovascular system that can push blood in two directions.
Answer:
A. Toxic algae blooms that remove oxygen from the water.
Explanation:
According to my recent research, I got to know that "An abundance of healthy nutrients" can be the answer, but here it mentions "HEALTHY" but the nutrients that are coming from the fertilizers, are only good for plants, not for other things that live in the water (fish). So, that's why, An abundance of healthy nutrients is NOT the answer.
A huge overpopulation of oysters is also NOT the answer either.
And, Plastic to wash up on the shore of the bay, can be one answer, but isn't.
So, your answer is A. Toxic algae blooms that remove oxygen from the water.
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Answered by: ms115
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Answer:
the characteristic of vertebrates from the following is
