Which animal group usually has an outer shell that is not jointed?Group of answer choicesmolluscsechinodermsannelidscnidariansarthropods
Question
Which animal group usually has an outer shell that is not jointed?Group of answer choicesmolluscsechinodermsannelidscnidariansarthropods
Solution
The animal group that usually has an outer shell that is not jointed is molluscs. This group includes animals like snails, clams, and squids. Their shells, if present, are typically made of calcium carbonate and are not segmented or jointed.
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