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:
The squirrel, robin, and field mouse
Explanation:
A producer is what gets its energy directly from the sun (usually a plant) and the squirrel, robin, and field mouse all eat the plant seeds, which get energy from the sun .
Its a mollusc (i think that helps?)
I'm not sure what you mean by this but here is a diagram of a nephron!! Hope this helps?
