<u>Speed</u> — it's defined as the rate of change of distance with respect to time.
The process of bringing a solid substance into the cell is known as phagocytosis. It is a process in cells where they ingest solid particles in order to feed on it, destroy or obtain certain information from it. It is a specific type of endocytosis.
Answer:
true
Explanation:
the molecules will naturally follow the concentration gradient. they will always try to flow from high concentration to low concentration. (like on a crowded elevator, you try to move away from people)