D. Fruit.
Fruit is not refined or process and contains more nutrients than the other options.
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Answer:
I HOPE I HELPED
Explanation:
the concerns of the challenges of being a US teen: what the data shows anxiety and depression serious mental stress is a fact of the life for many Americans alcohol and drugs in society and depression are the only concerned for us teens bullying and cyberbullying gangs poverty and teen pregnancy.THIS IS THE ANSWER BUT I PUT IT IN THE WRONG SPOT MY BAD
Answer:
shortness of breath, exercise intolerance, dizziness, chest pain
Explanation:
it blocks blood flow to the heart
The best answer for the blood vessels' valves would be these are veins that would then help in preventing the back flow of blood because the walls have small muscle to pump the blood back to the heart.Hope this is the answer.