Question

In torsion, twisting of visceral mass occurs at an angle of

Answer 1

360°

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Answer 2

Answer:

Torsion is a gastropod synapomorphy which occurs in all gastropods during larval development. Torsion is the rotation of the visceral mass, mantle, and shell 180˚ with respect to the head and foot of the gastropod. This rotation brings the mantle cavity and the anus to an anterior position above the head.

Explanation: