Ascientist discovers a new microscopic structure and hypothesizes that it is a living organism. which of the following characteristics would support the contention that this "organism" may be alive?
a. it contains dna.
b. it consists of a single cell.
c. it maintains a constant interval environment.
d. all of the above.

The correct answer will be option-D.

Explanation:

Biologists have identified eight characteristic feature of a living organism which distinguishes the living organism from non-living organism.

The features are that organisms should contain: cells, heredity material, metabolism, reproduction, sensitivity, homeostasis, growth and development.

In the given question, when the scientist hypothesized that structure is living organism then it should show all the options provided as all of these features are shared by the living organism.

Thus, option-D is the correct answer.

the answer is b.) hydrogen bonds between bases.