Question

In which phylum animals use both gills and lungs for respiration?

a) reptile b) cyclostomata c) amphibian d) mammals
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Answer 1

Explanation:

Sponges and jellyfish lack specialized organs for gas exchange and take in gases directly from the surrounding water. Flatworms and annelids use their outer surfaces as gas exchange surfaces. Arthropods, annelids, and fish use gills; terrestrial vertebrates utilize internal lungs.

Answer 2

Answer:

reptile I think or mammals