2. Explain the organs for movement in aquatic animals
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They use oxygen
dissolved in water. Gills are projections
of the skin. You may wonder how gills
help in breathing. Gills are well supplied
with blood vessels for
exchange of gases.Aquatic animals may breathe air or extract oxygen that dissolved in water through specialised organs called gills, or directly through the skin.
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Answer:
fins, tails, feet, etc
Explanation:
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