Answer:
A. Populations were separated through geographical isolation.
Explanation:
Answer:
Adaptive immune defense system consists of lymphocytes like B-lymphocytes and T- lymphocytes. B-lymphocytes provides humoral immunity while T- lymphocytes provide cell-mediated immunity to the body.
99% of lymphocytes circulate freely in the blood and lymph. B lymphocytes differentiate into plasma B cells and B memory cells when interact with antigen presented by T helper cells.
Then plasma cells secrete antibodies in the circulation which binds to extracellular antigens through antigen-binding site. Then the bounded antigen is recognized by receptors present on phagocytic cells. This receptor binds the Fc region of antigen bounded antibody and destroy the antigen by phagocytosis.
Answer:
B.
Explanation:
Same but different because lizards are very similar to snakes. Snake are just more vicious.
The answer to this question would be: Inhibited grief.
Inhibited grief happens when someone <span>does not display any sign of mourning. This kind of grief can cause a health problem like a stomach ache or a headache. It is important to resolve the grief when losing someone important so that grief doesn't come back as an unexplained medical problem.</span>
