Question

fill in the blank question

a small number of blank are considered beneficial in that they provide the cell with a useful change in structure or physiology.

Explanation:

Identify the biological concept

The sentence describes a genetic change that provides a cell with a useful change in structure or physiology, which is the definition of a beneficial mutation.

Determine the correct term to fill the blank

The sentence structure "A small number of [blank] are considered beneficial..." requires a plural noun. The term "mutations" fits grammatically and conceptually.

Answer:

A small number of <blank>mutations</blank> are considered beneficial in that they provide the cell with a useful change in structure or physiology.