QUESTION 21 Which of the following phyla is entirely marine (i.e., all species in this phylum live in salt water)? Mollusca Porifera Echinodermata Annelida Cnidaria
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- Porifera: Not entirely marine, as some species can also be found in freshwater. - Echinodermata: Entirely marine, as all species in this phylum live in salt water. - Annelida: Not entirely marine, as some species can also be found in freshwater. - Cnidaria: Not Show more…
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