Skin serves as a protective barrier, a way to sense the world, and a layer that keeps nutrients and water inside the body. Four types of cells make up the skin, and they are produced mainly in the epidermis near the basement membrane.
Answer:
.
Explanation:
Endocrine system uses chemical signaling (slow)
Nervous system uses electrical signaling (fasr)
No. Producers and consumers make the some way 'the food chain' and if one of them dies the other one will be affected and then dies.
I believe another term for Natural Selection, based off of the answers provided, I would say C, Survival of the Fittest.