Why are leaves green and in what cell organelle is it stored

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

What happened to rosalind franklin in 1956?

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."