Why should we conserve biodiversity?
Why should we conserve ecosystem?

Certainly we should conserve Biodiversity! Every organism has its place and reason for existence; destroy them and their input of what they did is lost, whether we knew what exactly they DID do. Nature is a wonderful web of interlocking and terribly complex interactions. To hurt one is to in some way, hurt all.

Conservation of Ecosystem gives a place for the very organisms we just mentioned a place to live as they are meant to live.

Explanation:

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands