DURING THE DEFINITION OF OSMOSIS
Answer:
earth revolution around the sun
Clonal selection of lymphocytes leads to the development of Effector cells and Memory Cells.
Answer:
differential survival ( more info below)
Explanation:
Natural selection is the differential survival and reproduction of individuals due to variations in phenotypes. This is a central process of evolution, a transition in the heritage characteristics characteristic of the population over centuries. Variation exists in all populations of organisms.
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