Question

1. what is the main function of the integumentary system?

a. transport oxygen to cells
b. protect the body from external harm
c. break down food into nutrients
d. produce hormones

1. which of the following structures is not part of the integumentary

system?
a. hair
b. skin
c. nails
d. ligaments

1. which of the following best describes the function of the skeletal

system?
a. it controls involuntary muscle movement
b. it breaks down nutrients for energy
c. it provides support, protection, and produces blood cells
d. it delivers hormones to target organs

Explanation:

1. The integumentary system (skin, hair, nails) acts as a physical barrier.
2. Ligaments connect bones to bones and are part of the skeletal system.
3. The skeletal system supports the body, protects organs, and bone marrow produces blood cells.

Answer:

1. B. Protect the body from external harm
2. D. Ligaments
3. C. It provides support, protection, and produces blood cells