The rough ER is involved with protein synthesis. It helps to produce proteins and help them fold properly.
Answer:
Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source pollution, which occurs as a result of runoff. Nonpoint source pollution includes many small sources, like septic tanks, cars, trucks, and boats, plus larger sources, such as farms, ranches, and forest areas.
Explanation:
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I don't really know but I pick b.have always been vestigial.
Generation of ATP. Hope it helps.
