T-lymphocytes are created in the bone marrow and then developed in the spleen.

adenoids.

thymus.

tonsils.

Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?