1.)<span>a. antibodies
2.)</span><span>b. its mechanism is well understood</span>
During body temperature regulation, temperature receptors in the skin communicate information to the brain (the control center) which signals the effectors: blood vessels and sweat glands in the skin.
Answer:
They create pressure to convert wildlife habitat into agricultural and urban land, and They produce wastes that pollute habitat and poison wildlife
Explanation:
The answer is community. A community is a group of people living in the same place.