The Following Questions Refer to the Paragraph Below

question 86

Multiple Choice

The following questions refer to the paragraph below.
An elementary school science teacher decided to liven up the classroom with a salt-water aquarium. Knowing that salt-water 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 gastropod varieties. Lastly, some vertebrates-a parrotfish and a clownfish-were added. She arranged for daily feedings of copepods and feeder fish.
-The species in the aquarium that possess True bilateral symmetry include the 1. sponges.
2) molluscs.
3) echinoderm.
4) sea anemones.
5) ectoprocts.

• A)2 only
• B)1 and 4
• C)2 and 5
• D)2, 3, and 5
• E)2, 3, 4, and 5

---

Definitions:

Nonlabor Income

Income received that does not come from working, such as interest from savings, dividends from investments, or government benefits.

Leisure

Free time spent away from work and compulsory activities, often devoted to relaxation, hobbies, and personal enjoyment.

Wage Rate

The amount of compensation an employee receives in exchange for performing a specific job, typically expressed per hour or year.

Endowment

The value that a property generates for its owner; in economics, it often refers to the initial allocation of goods and resources available to individuals.