Which statement is true of both active transport and facilitated diffusion?

a)
both involve proteins in the cell membrane.

b)
both occur in only one direction.

c)
both require atp.

you dont brother god luck

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explanation:

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

true

explanation: