Use the Information to Answer the Following Question

question 25

Multiple Choice

Use the information to answer the following question.
The nontaxonomic term sea slug encompasses a wide variety of marine gastropods. One feature they share as adults is the lack of a shell. One 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.
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 nematocysts most likely reach the skin of sea slugs through branches of the ________.

• A) intestine
• B) excurrent siphon
• C) nephridium
• D) pseudocoelom

---

Definitions:

Crossword Puzzle

A word game where players fill in a grid of squares with words that intersect by solving clues given for each word.

Memory Bias

The tendency to remember or report events in a way that is not accurate, influenced by current knowledge, beliefs, and feelings.

Persistence in Memory

Typically refers to Salvador Dalí's painting showcasing melting clocks, but can also refer to the enduring nature of memory over time.

Absentmindedness

A state of preoccupation where one is so lost in thought that they become unaware of their immediate surroundings or actions.