B!
Parasitism is when one organism benefits and harms the organism it is living off of, while the organism it is living off of will only be harmed and does not benefit.
<span>Temperate Decidous Forest.. </span>
The answer is concentration gradient. Have a good day.
Answer & Explanation:
Plants are unique because they have chloroplasts, which absorb light energy from the Sun.
-Hope it helps!
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mostly collagen and some calcium phosphate