Yes, leaves that are of any other colors than green also have chlorophyll. The green colour of chlorophyll is just hidden beneath other pigments of the leaf.
Yes. It's a nonrenewable resource as it takes billions of years to form it. It would take another billion year to form natural. By then, who know if Human civilisation will end.
It contains the DNA and control the cell :)
The homology of animals is based on scientists current understanding on the evolutionary history of living species.
Answer:
It should be.
Explanation: It is because they are different from ordinary people and they don't want there extraordinary properties to be cut of from their next generation.