Answer:
the balance is everything must have a process of living and dying in an ecosystem. such as, an animal killing another animal for prey to eat it, that is a process. in a water ecosystem, fish lay eggs and come out and usually get eaten by a bigger animal, as they grow up, usually by bigger fish itself such as the Grayling.
Explanation:
Depth, flow, temperature, and chemistry of overlying water
The theory of continental drift was given a scientific status during the:
1960's.
Answer:
I'm not sure exactly what your supposed to do but a,b and c are all correct but d is false.
5. System level
6. Organ level
