What uses protein channels to move materials across the membrane

!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.

Photosynthesis converts solar energy into what type of energy?

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?