Answer:
color changed.
and the temperature changed.
Explanation:
C.
Biotic mean alive, so we can cut off the first 2 easily. Aquatic birds eat frogs, so that one is safe for now. A decrease in something parasitic usually helps the population, so D is out too. The only one left is C.
Answer: B) It controls the autonomic nervous system and regulates hunger and thirst sensations.
