Cross-pollination, people could do it by hand by moving the pollen, and the wind could move it. I tried
More widely available food chain for other predators, an increase in population of the prey.
<span>d. neither of these will cross a plasma membrane.
Glucose cannot diffuse across a plasma membrane as it is polar. Since the question doesn't specify the type of diffusion, simple diffusion is assumed.
If you count facilitated diffusion, then A is the answer.</span>
