Question

the skeletal system serves all of the following functions except:
a. bone marrow produces red and white blood cells which help carry oxygen through the blood and fight diseases.
b. the skeleton gives the human body its support, shape, and form.
c. the skeletal system helps to protect vital organs.
d. the skeletal system aids in the production of hormones that signal muscle and hair growth.

Explanation:

• Option A: Bone marrow (part of skeletal system) does produce blood cells, which is a function of the skeletal system.
• Option B: The skeleton provides support, shape, and form to the body, which is a well - known function of the skeletal system.
• Option C: Bones protect vital organs (e.g., skull protects the brain, ribcage protects the heart and lungs), which is a function of the skeletal system.
• Option D: Hormones that signal muscle and hair growth are mainly related to the endocrine system (e.g., growth hormone from the pituitary gland). The skeletal system is not the main system for producing hormones related to muscle and hair growth.

Answer:

D. The skeletal system aids in the production of hormones that signal muscle and hair growth.