The blank system works with th circulatory system to add oxygen to the black of and remove carbon dioxide from body

10alcohol affects the brain, reducing a person's ability to think clearly. the driver may not and actually feel he/she is performing better than they actually are.

Describe the potential effects, on people, of unprotected exposure to the sun.give an example of 1 new thing have you learned about the sun’s uv rays.

When calculating the daily protein needs for marathon runners or competitive weightlifting, you should allow for approximately grams of protein per kilogram of body weight