I believe it is B. Because during vigorous exercise, the heart rate and depth of breathing increases to supply muscles with more oxygen.
2. A)45 (there are 9 calories in every gram of fat)
7. C) stored in the body as a fat
10. D) cheese
The lens helps the eye to focus on images.
"The Lens. The lens is composed of transparent, flexible tissue and is located directly behind the iris and the pupil. It is the second part of your eye, after the cornea, that helps to focus light and images on your retina."
Explanation:
its calls would be softer
C. Not all exercise takes max effort. You can walk as exercise but it’s not putting forth as much as a run or sprint.