Which of the following can refer to the form of exercise that uses free weights, weight machines, resistance bands, or the weight of the body to out stress on the muscles

Can someone give me one specific health problem (within unhealthy eating) and explain it. !

Avirus consisting of a single strand of rna, which is transcribed into complementary dna, is a ) proteaseb) retrovirusc) rna replicase virusd) nonenveloped virus

Which action occurs in the third stage of cell division? a. the nuclear material of cell is copied exactly. b. the nuclear membrane disappears. c. the cell forms two nuclei d. the nuclear material separates, with half moving to either side of the cell.