Answer:
A. the food web
Explanation:
Ecosystems have lots of different living organisms that interact with each other. The living organisms in an ecosystem can be divided into three categories: producers, consumers and decomposes. They are all important parts of an ecosystem. Producers are the green plants.
Answer:
I believe the answer is Temperature.
The answer is D, 15,000 x 0.2= 3000 add that together =18,000