OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE, Echinoderms live both in water and land
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FALSE, Echinoderms dwell totally in water/marine environments
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Either A or B
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None of the above
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Detailed explanation-1: -Echinoderms live in every ocean, even off the coast of Antarctica. Well known as coastal dwellers, they can be found at depths over three miles deep (5, 000 meters).
Detailed explanation-2: -Echinoderms live in marine environments that range from the shallow estuarine to the deep sea in tropical to polar latitudes and often play integral roles within the marine ecosystem. As adults, echinoderms are predominantly benthic animals although a few species can swim.
Detailed explanation-3: -The correct answer is (b). Echinoderms do not have gills.
Detailed explanation-4: -Echinoderms are the largest phylum with no freshwater or terrestrial forms. Echinoderm environments must be marine, as in saltwater, for the echinoderm to survive. Within marine environments, the conditions echinoderms live in can vary greatly.