Body composition is used to describe the percentages of bone, water, fat, and muscle in human bodies.
The right ventricle pumps deoxygenated blood to the lungs where it absorbs oxygen.
Simply walking alone can actually do both of these however if you are looking for multiple answers then here are some examples:
-Playing Sports
-Jogging
-Lifting Weights
-Swimming
-Dancing
-Bike Riding
etc...
Anyways, hope I helped!
The answer is: D. Mushroom
the answer is mushrooms because mushrooms are plants and plants are considered producers