Question

Define aquatic organisma​

Answer 1

Answer:

An aquatic animal is an animal, either vertebrate or invertebrate, which lives in the water for most or all of its lifetime

Answer 2

Explanation:

An aquatic animal is an animal, either vertebrate or invertebrate, which lives in the water for most or all of its lifetime. ... 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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