He should do more cardiovascular exercise and make more realistic goals.
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Capillaries<span> are the smallest of the body's blood </span>vessels<span>. They are only one cell thick, and they are the sites of the transfer of oxygen and other nutrients from the bloodstream to other tissues in the body; they also collect carbon dioxide waste materials and fluids for return to the veins.</span>
C.3 vaccines help prevent diseases and stuff
Answer:
C
Explanation:
if ur in college dont take my answer cuz I'm not sure
Answer: A frequently used word or phrase or it is a way to convey your thoughts, feelings or emotions.
Example: "a penny saved is a penny earned."
