D is the answer....tornado damage can not be used to determine both the weather and climate of a region
It helps with the optic nerve, if you give me options i can help answer. Sorry if I didnt help :)
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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a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membran.
