Zippy Xylem. The xylem of a plant is the system of tubes and transport cells that circulates water and dissolved minerals.
The answer has to be A., a duck.
A hydra removes undigested food by pulling the food out with it's tentacles.
The answer is facilitated diffusion. Facilitated diffusion happens when there is a
carried changing the cell membrane so the nutrients can pass through. During facilitated diffusion, the absorbed
nutrients such as water soluble vitamins need a specific carrier to transport
the to the cell membrane.