Answer:
corona
AND TEENAGE MUTANT NINGA TURTLES
Explanation:
It is also possible to move substances across membranes against their concentration gradient (from areas of low concentration to areas of high concentration). ... If the energy of ATP is directly used to pump molecules against their concentration gradient, the transport is called primary active transport.
Hope this helps
Answer:
killer T
Explanation:
helper T activates killer T cells which literally kill the virus or bacteria. memory T are the subset of an infection.
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I thought it would of been D but I’m not sure now