When muscles contract, they a. get larger b. pull on bones c. remain still d. split in two

What do you generally see in a family when both parents are working?

Melanocytes and keratinocytes work together in protecting the skin from uv damage when keratinocytes a. provide the melanocyte with a protective shield against abrasion b. maintain the appropriate temperature so the product of the melanocyte will not denature c. maintain the appropriate ph in order for the melanocyte to synthesize melanin granules d. accumulate the melanin granules on their superficial portion, forming a uv-blocking pigment layer

When you have proper posture, your back is arched. a. true b. false