by not being gay and or licking slick
A.) By showing beautiful, strong, popular people using tobacco and cigarettes. (In commercials and other media)
Yolk sac during first 7 weeks
placenta from 8 weeks till birth
Aerobic respiration can produce a maximum of 38 ATP per glucose molecule. Anaerobic respiration can produce 2 ATP per glucose molecule. As a result, aerobic respiration is about 19 times more efficient.