What happens to nerve cells in the brain destroyed by alcohol abuse?
a) they split into slivers
b)they are rapidly replaced
c) they usually cannot grow again
d) they form blood clots

Mario was conducting research regarding the treatment of aids victims using stem cells. he found a source that was written recently and the author was known. unfortunately, he could not determine if it had been peer reviewed.

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive

Which activity causes the greatest risk of driving fatalitiesa. driving at nightb.driving while distractedc.driving with a passengerd.driving on a clear day