Compared to white smokers, african-american smokers a. smoke fewer cigarettes, but carry a higher risk of tobacco-related disorders b. smoke fewer cigarettes and carry a lower risk of tobacco-related disorders c. smoke more cigarettes and carry a higher risk of tobacco-related disorders d. smoke more cigarettes, but carry a lower risk of tobacco-related disorders

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

Brendan made a diagram to compare and contrast the benefits of two types of social behavior. which description belongs in the area marked "z"? reproductionprotectionforaginghydrodynamic efficiency

The wind speed in the region between cities a and b was probably the greatest at noon on which day