Answer:
<em><u>Active transport is an important form of substance transport on the inner surface of the small intestine. ... Active transport allows these cells to take up salts from this dilute solution and against the concentration gradient</u></em>
Explanation:
and i'm mexican
Part of one chromosome is exchanged with another.. so i’d say C possibly.
Answer:
In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.
Answer:
should be "3. is used by airplane"
Answer:
Villi
Explanation:
Hope this helps have a good day :)