Answer:
Passive transport must occur to maintain homeostasis. Active transport must occur to get the needed nutrients in and out of the cell.
Explanation:
Circadian rhythms ....its just behavior that is repeated over 24 hours
Answer: Cellular respiration is the process by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform work at the cellular level.
Explanation: In simpler words, it provides energy for the cell to do basic needs.
A. Survival of the fittest and natural selection are interchangeable terms.
Answer: cell type, ability to make food, and number of cells in their body
Explanation: