Use the Following Information to Answer the Question

question 47

Multiple Choice

Use the following information to answer the question.
An elementary school science teacher decided to liven up the classroom with a saltwater aquarium. Knowing that saltwater aquaria can be quite a hassle, the teacher proceeded stepwise. First, the teacher conditioned the water. Next, the teacher decided to stock the tank with various marine invertebrates, including a polychaete, a siliceous sponge, several bivalves, a shrimp, several sea anemones of different types, a colonial hydra, a few coral species, an ectoproct, a sea star, and several herbivorous gastropod varieties. Lastly, she added some vertebrates-a parrot fish and a clown fish. She arranged for daily feedings of copepods and feeder fish.
If the teacher wanted to show the students what a lophophore is and how it works, the teacher would point out a feeding ________.

• A) hydra
• B) sponge
• C) gastropod
• D) ectoproct

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Definitions:

Frustration

The feeling of being upset or annoyed as a result of being unable to change or achieve something.

Fight-Or-Flight

A physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival.

Hans Seyle

Incorrect key term, possibly a misspelling of Hans Selye, who is a pioneering Hungarian-Canadian endocrinologist known for his research on the stress response.

Adaptation

The process by which a species becomes fitted to its environment; it is the result of natural selection acting upon heritable variation over several generations.