The answer is A. Putting the aquarium in the dark means that
the aquatic plants will not be able to photosynthesize. The process of photosynthesis produces oxygen
as a by-product. The oxygen is used by the fishes in respiration and release
carbon dioxide. The carbon dioxide is used by the aquatic plants in photosynthesis.
Answer:
B. sending neurotransmitters to endocrine target cells
Explanation:
Your endocrine system works closely with your brain and central nervous system to control the creation of specific hormones and enzymes.
Testosterone, the hormone responsible for the secondary sexual characteristics that develop in the male during adolescence, stimulates spermatogenesis. These secondary sex characteristics include a deepening of the voice, the growth of facial, axillary, and pubic hair, and the beginnings of the sex drive.
Answer:
I don't think this is good
Explanation:
if there was a machine it would be good
because as coal it harms our environment from harmful drty gases
