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Sagot :
Clams and snails are similar in that both have a shell. What animal is the next closest to having a developing shell identical to the one on the shell, which is made of silicon (nacre/pearl) and calcium and is the most visible common feature. There is no such thing as a wormy shelled creature. Even the shell has changed.
The grinding and filter mechanism in snails and clams is quite different, they have almost no articulations, and only one main muscle, leaving only simple features like the heart and circulations and shell and muscle structure in common.
That is one characteristic of the mollusks, to which both of them belong. The group of mollusks is quite diversified. They comprise both land and marine creatures. There may be a lot of shells given that there are well over 100,000 species.
Mollusks is discussed in more detail here: https://brainly.com/question/28737614?referrer=searchResults #SPJ4
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