here are specific critical periods during fetal development in which any damage caused to the fetus from malnutrition or exposure to toxins is irreversible. When do these periods occur? a) 3rd trimester b) 1st trimester c) 2nd trimester d) only at week 12 e) there are no critical periods

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A:

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Q: Question is attached

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Q: innate immune system

A:

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Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.