Which substance act to prevent sudden ph changes in bodily fluids

Aclient says to a nurse, "i have trouble sleeping and wake up several times during the night." what instructions should the nurse provide to the client? select all that apply.

Many kangaroo rats live in the sonoran desert of the southwestern united states. they have a variety of adaptations for living in the desert. under which circumstance would the kangaroo rats of the sonoran desert be most likely to develop new adaptations by natural selection?

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5