Question

how does heredity affect flexibility? a. heredity does not affect flexibility. b. heredity affects which joint types a person develops. c. heredity affects the amount of flexibility present in joints. d. heredity affects how joint structure is developed.

Explanation:

Heredity influences the genetic blueprint of joint structure, connective tissue elasticity, and muscle fiber composition, which directly determine the baseline amount of flexibility a person has in their joints. Option A is incorrect as heredity does impact flexibility. Options B and D are incomplete; while heredity plays a role in joint development, its most direct and well-documented effect on flexibility is the baseline amount of flexibility available in joints.

Answer:

C. Heredity affects the amount of flexibility present in joints.