Explanation:
The modern theory of chemical evolution is based on the assumption that on a primitive earth a mixture of simple chemicals assembled into more complex molecular systems, from which, eventually came the first functioning cell(s).
The homology of animals is based on scientists current understanding on the evolutionary history of living species.
Answer:
rtywrtywrtywrtywrtywrtyw
Explanation:wrtywrtywrtywr
7. Phloem & xylem.
And I’m not sure about 8