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

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.