Which of the following is an effect of smoking? a. a smoker's heartbeat is three times slower than a non-smokercs. b. smoking slows down your lung growth. c. smoking improves your lung function. d. teens who do not smoke suffer from shortness of breath more often than those who do smoke.

How are people today protected from poop 50 points

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

The 1.5 mile run test and the 12 minute swim test are considered as what kind of test ?