Do all living organism have skeleton?

Living organisim have

Which of the following is correct: (a) Cells of all living organisms have a nucleus. (b) Both animal and plant cells have a well defined cell wall. (c) In prokaryotes, there are no membrane bound organelles. (d) Cells are formed de novo from abiotic materials.

[A] : Living organisms do not interact with each other. [R] : All living organisms have originated independently.

All living organisms are linked to one another because

How many living organisms are known to biological world?

How can living organisms be distinguished from non-living organisms?

Give example of living organism where conjugation is seen.

The most diverse chemicals in a living organism are

The practical purpose of classification of living organisms is to

________________are the smallest living organisms.