This Nudibranch, a Type of Sea Slug, Has Many Reddish

question 29

Multiple Choice

This nudibranch, a type of sea slug, has many reddish cerata on its dorsal surface, as well as two, white-tipped rhinophores located on the head.

The nontaxonomic term sea slug encompasses a wide variety of marine gastropods. One feature they share as adults is the lack of a shell. We might think, therefore, that they represent defenseless morsels for predators. In fact, sea slugs have multiple defenses. Some sea slugs prey on sponges and concentrate sponge toxins in their tissues. Others feed on cnidarians, digesting everything except the nematocysts, which they then transfer to their own skins. Whereas the most brightly colored sea slugs are often highly toxic, others are nontoxic and mimic the coloration of the toxic species. Their colors are mostly derived from pigments in their prey. There are also sea slugs that use their coloration to blend into their environments.
-Which structure do sea slugs use to feed on their prey?

• A) nematocysts
• B) a sharp beak
• C) an incurrent siphon
• D) a radula
• E) a mantle cavity

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Definitions:

Depreciated

A reduction in the value of an asset over time, due in particular to wear and tear.

Interest Capitalization

The process of adding interest that has accumulated on a loan to the principal balance of the loan, effectively increasing the total amount owed.

Borrowed

Refers to funds or resources obtained through a loan or credit that must be repaid in the future, often with interest.