The period in which humans are able to reproduce is marked by the development of a. secondary sex characteristics b. male and female gonads c. aspermia d. amenorrhea

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

Trustworthy health-related websites should be frequently reviewed by medical professionals, even if the content doesn't change. select the best answer from the choices provided. t f

What can friends provide to affect mental health positively? a)peer pressureb)challengesc)conflictd)companionship