Need my answers checked for a pe test: )
1. the terms "aerobic fitness" and "cardio-respiratory fitness" mean the same thing.
false
2. duration refers to the amount of time of your aerobic session.
true
3. frequency refers to how hard you exercise
false
4. intensity refers to how hard the body is working
true
5. activities that are low in intensity and if short duration will provide adequate cardio-respiratory improvement.
true
6. during aerobic activities, your muscles require less oxygen.
false
7. the best aerobic activity is one you enjoy doing the most.
true
8. the most common draw backs of aerobic workouts are joint and muscle strains and sprains.
false
9. the more aerobic exercise that you do, the thinner you get.
false
10. warming up your body prepare for exercise by slowly lowering your heart rate and muscle temperature.
true

to prevent people from getting the ebola virus, countries around the world paid to doctors develop a new vaccine. now that the vaccine has been made, doctors will need to experiment on a large number of people to find out if it works safely.

what is the greatest limitation that scientists are dealing with as they try to figure out how to experiment with the ebola vaccine?

meditation is a practice of sitting still and quiet for minutes or even hours. it has been practiced for thousands of years and is even a part of religious practices for some people. carefully controlled, repeated measurements of brain activity have shown that meditation does increase certain chemicals in the brain and even grows the part of the brain that people connect with their current surroundings and activities.

are claims about the effects of meditation most likely scientific or pseudoscientific?

not pseudoscientific, because people have made claims about it but scientific observations have not been made

aed pads should be placed in the middle of the child's chest. this ensures that the electricity can properly run through the child's body and hopefully cause his/her heart to start again. hope this : )