The pigment responsible for variations in skin coloring is ____.

What are the cells found within an osteon?

The following steps are involved in what process?: Active-site exposure; Cross-bridge attachment; Pivoting; Cross-bridge detachment: Myosin reactivation

A burn that involves only the epidermis, has symptoms of redness, pain, and slight swelling, and can heal in about seven days without scarring is known as a ____.

The neurotransmitter released by the neuromuscular junction is ____.

Which of the following are examples of body membranes?

inversion

dwarfism

A sarcomere is:

Exposure to sunlight is the most common cause of skin cancer.