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:
1.true2.true3.true
Explanation:
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Answer:
It's C. Plants produce oxygen and nutrients via a process known as photosynthesis using water and carbon dioxide
