Answer:
You would find the greatest variety of species in the tropics, and coral reefs. The Amazon basin in South America has the largest area of tropical forests where you could find the most variety of species.
Explanation:
Carbo dioxide, water and sun's energy comes fron the outside.... energy and Oxygen molecule are produced
Nucleic acids contain the genetic code.
It has two layers.
Hope I could help :)
Answer: petroleum
Hope this helps