The cell membrane is what surrounds a cell and allows water to pass through.
Plankton is at the bottom of a food chain. Think of a pond. Mosquito larvae are in a pond. They eat the plankton. Small fish eat the larvae. Larger fish eat those smaller fish and the chain keeps going..BUTTT it all started with the PLANKTON. Without the plankton the whole food chain would be messed up and everything would start dying.. No plankton, no larvae, no small fish..and so on..
Passive is when the channels don't need energy to do so and active is when they need energy
Answer:
Cytokinesis
Explanation:
This is the last stage of the cell cycle. Shown here, the parent cell is dividing into two daughter cells due to the division of cytoplasm between the two daughter cells. This stage is known as cytokinesis (or telophase).
The answer is C.) The <span>nervous system causes blood vessels to constrict.
This is because when they constrict they go further from the skin and discourage heat escaping.
Mark brainliest if I helped you</span>