It appears as if the direction of shell coiling in Lymnaea peregra is influenced by the orientation of the first cleavage division.

Name: It appears as if the direction of shell coiling in Lymnaea peregra is influenced by the orientation of the first cleavage division.
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Question

Quizplus · Accepted Answer

Research has shown that the direction of shell coiling in Lymnaea peregra is indeed influenced by the orientation of the first cleavage division. This phenomenon is known as the Cleavage-Induced Spiral Ornamentation (CISO) hypothesis.

It Appears as If the Direction of Shell Coiling in Lymnaea