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 stingers of honeybees have a function most similar to that of
A) rhinophores.
B) dorsal plummules.
C) cerata.
D) more than one of these.

Question

Quizplus · Accepted Answer

The cerata, which contain nematocysts, are used by nudibranchs to defend themselves against predators, similar to how the stingers of honeybees are used for defense. The rhinophores and dorsal plummules have functions unrelated to defense or stinging.

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