Question

a study of biological aging found that some people age ____ times faster than others, with about half of the difference between fast and slow aging evident by age 26.
○ 3
○ 5
○ 7
○ 10

Explanation:

This is a factual question about biological aging research. Based on common knowledge in the field of biology (specifically aging research), the study found that some people age 5 times faster than others.

Answer:

5