The skin plays a role in the production of vitamin D because when dehydrocholesterol reaches the skin by means of the blood and is exposed to ultraviolet light from the sun, it changes to vitamin D in an inactive form.
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A is false.
Respiration breaks down glucose and oxygen, not food.
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Select the correct statement about lymph transport.
Lymph transport is faster than that occurring in veins.
Under normal conditions, lymph vessels are very high-pressure conduits.
Lymph transport is only necessary when illness causes tissue swelling.
Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.
