B. It insulates the fish from the cold air above
Just like an igloo
The thymus is the only lymphoid organ that does not D. fight the antigens directly.
- The thymus, bone marrow, spleen,lymph nodes, a network of lymphoid tissue along secretory surface (MALT), and the skin which performs the immune functions are known as lymphoid organs.
- On the basis of its role, lymphoid organ are classified into primary and secondary lymphoid organ.
- The lymphocytes from bone marrow are transformed into specialised T cells in the thymus. In this way thymus helps to improve the immune system
- T cells produced in the thymus is travels through the blood stream to lymphnodes and other parts of the body to fight against the antigen.
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Your answer will be NEANDERTHAL
hope it helps ^_^
The answer is 1. Ecosystem.
Oxygenic photosynthesis works as a counterbalance to breathing by taking in the carbon dioxide produced by all breathing organisms and reintroducing oxygen to the atmosphere.
