(A) Mitochondria, I believe.
Carbon is usually the result of burning fuels, cars, busses, taxi's
Answer:
A shark's skeleton is made of cartilage , a type of strong but flexible tissue .Most other fish are covered in smooth , flat scales . A shark is covered in sharp , toothlike scales called denticles . Most other fish have flaps over their gills.
Explanation:
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Answer:
Boats must be cleaned after getting out of the water to ensure there arent any on the sides of the boat before entering another body of water.
Explanation:
