Neurotransmitters affect postsynaptic cells by (select all that apply)I. initiating signal transduction pathways in the cells. II. causing molecular changes in the cells. III. affecting ion-channel proteins. IV. altering the permeability of the cells.

Describe the change in phase and temperature as water moves from the oceans to the atmosphere and then returns to earth again as rain. a) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature decreases b) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature increases c) evaporation : temperature decreases; condensation : temperature decreases; precipitation (rain) : temperature decreases d) evaporation : temperature increases; condensation : temperature increases; precipitation (rain) : temperature decreases

Which rate indicates the number of children that would be born per women if she were to live to the end of her child-bearing years

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