Answer:
question five is true and the second one is the second also
Explanation:
Answer: protects the external structure of the cell
Explanation: the cell membrane is a protein envelope that is wrapped around the cell. Both the animal and plant cell (including other microorganisms) have it.
Answer:
The correct answer would be : b. water.
Explanation:
A renewable resources is the resource that can be replenished or recycled by natural processes within hours to centuries unless it is not use faster than time it takes to renew.
Such resources include grasses, fresh water in lakes, animals, trees, ground water, air and fertile soil and many more resources. Carbon, solar energy and natural gases are non renewable resources.
Thus, the correct answer would be : b. water.
Answer:
Cancer cells are immortal and keep on dividing for an unlimited number of times. Cancer cells pile on top of one another and grow in multiple layers, forming a tumor. Cancer cells keep on dividing, even when stimulatory growth factors are absent, and they do not respond to inhibitory growth factors.
Answer:
memory cells are in a resting state, a small percentage ... Apparently this replacement is maintained by cytokines.