Biology b unit 4: the human body - lesson 12: the integumentary system

1) which of these is not a function of your skin? (1 point)

a) keeps your body cool when you exercise
b) releases waste products like urea and salts
c) prevent pathogens from entering your body
d) holds the bones of the skeleton together

2) the integumentary system includes (1 point)

a) skin only
b) hair only
c) nails only
d) skin, hair, and nails

3) which of these skin cancers is most likely to spread to other parts of the body without early treatment? (1 point)

a) basal cell carcinoma
b) squamous cell carcinoma
c) melanoma
d) basal cell carcinoma and melanoma

4) what happens when the keratin-producing cells of the skin die? (1 point)

a) melanin and keratin are produced.
b) an additional dermis layer is formed.
c) a waterproof coating is formed.
d) melanin is produced.

5) dandruff is caused by the shedding of excess cells from the outer layer of the skin. what is this outer layer called? (1 point)

a) dermis
b) hypodermis
c) epidermis
d) hair follicle