Why is it important to keep your back and neck straight while performing a hamstring stretch? a. you can't touch your toes with your neck and back bent b. arching the neck and back puts stress on the spine c. bending the back turns this into a spine stretch d. the hamstring is only stretched when the back is straight.

During the past few weeks or months, have you noticed any exercises that have become too easy for you? do you think you need to increase the intensity in any of the three exercise areas in your workouts? evaluate your exercise progress in the three exercise areas (cardiovascular, resistance, and flexibility) and list what modifications, if any, you may need to make in your exercise routine.

Which of the following could use reverse transcriptase to transcribe its genome? a) ssrnab) dsrnac) ssdnad) dsdna

Building muscle has which of the following effects? it increases the metabolic rate. it relieves pressure on the joints. it slows weight loss considerably.