Biology, 30.07.2019 12:30 tsimonej12

The diagram below represents a human organ system the major function of the system is to: 1. provide immunity essential for survival of each individual in a population. 2. provide cells that are necessary for the survival of the species. 3. produce chemical messages are necessary for nerve cell development. 4. control the passage into and out of a developing fetus. choose the answer for me . i need with that question and explain why it is the answer so i can understand.

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The diagram below represents a human organ system the major function of the system is to: 1. provid...