Answer:
B - Proteins
Explanation:
Excluding water and fat, the human body is made up almost entirely of protein. Protein is the main component of muscles, bones, organs, skin, and nails.
Hope this helps!
Please give Brainliest!
I would say Frequency is how often you perform an activity, and Intensity is how hard/intensely you perform the activity.
D. The Peyer's patches can release B cells to destroy Listeria
