Approximately how many news cases of stis occur in the united states
each year?
a. 23 million
b. 13 million
c. 19 million
d. 9 million

Which u.s. state is home to the fewest species of mosquitoes?

What nutrients prevent osteoporosis? a. all vitamins and minerals b. calcium, vitamins c, d, and k, and magnesium c. protein d. carbohydrates

If you were running a marathon, which type of muscle fibers would be most useful to you? a. slow-twitch b. fast-twitch, type i a c. intermediate-twitch, type ii b d. slow-intermediate twitch, type i b select the best answer from the choices provided. a b c d