The right answer is B. controlling the flow of blood to the skin
When the body temperature is below the set point, the hypothalamus activates several thermogenesis mechanisms:
* Vasoconstriction on the vessels near th skin by the sympathetic nervous system to reduce thermal exchanges between the skin and the surrounding environment.
* And increase in heat production:
-by muscular activity:
-by the metabolism:
Answer:
D.
Explanation:
When an arrow points from a seal to a shark it means the shark is recieving energy from that seal. (By eating it.)
Answer:
Parts of the U.S. state of Alaska and the countries of Canada, Greenland, Iceland, Norway and Russia are all in the Arctic tundra biome. Regardless of how cold and bleak the weather may be in the northern contiguous states in the middle of winter, technically, the tundra does not extend below northernmost Canada
Explanation:
A theory of evolution that states that a species evolves in spurts of rapid change and then goes through periods of no change is known as <span>punctuated equilibrium.</span>
Answer:
Paracitic
Explanation:
The fungus continues to grow in the ant body and finally comes out from the ants head and spread its spores. Therefore the type of nutrition is parasitic
