For yoko's physical fitness class, she is supposed to do a certain amount of aerobic exercise on her own. which of the following would be the best option?
1.sit-ups
2.push-ups
3.lifting weights
4. dancing

Victoria enjoys laughing with her friends as they walk around the track after school which best describes her heart rate during this activity

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis. b) it converts host cell rna into viral dna. c) it translates viral rna into proteins. d) it uses viral rna as a template for making complementary rna strands.

Lifestyle diseases are caused by a combination of