Nudibranchs, a Type of Predatory Sea Slug, Can Have Various

question 57

Multiple Choice

Nudibranchs, a type of predatory sea slug, can have various protuberances (i.e., extensions) on their dorsal surfaces. Rhinophores are paired structures, located close to the head, which bear many chemoreceptors. Dorsal plummules, usually located posteriorly, perform respiratory gas exchange. Cerata usually cover much of the dorsal surface and contain nematocysts at their tips.
-The lateral flaps of planaria heads have a function most similar to that of

• A) rhinophores.
• B) dorsal plummules.
• C) cerata.
• D) more than one of these.

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