The molecule which distinguishes living systems from nonliving and serve as hereditary material is called

deoxyribonucleic acid (DNA)

Explanation:

DNA is the main hereditary material that distinguishes living from non-living things.

It is so because its replication i.e DNA replication can ONLY occur in the cell of a living organism. That is why even virus replicate it's DNA only in a living host not else where.

So, DNA is the answer

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