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A Primary School Science Teacher Decided to Liven Up the Classroom

question 25

Multiple Choice

A primary 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 ________.

Definitions:

Actual Production

Refers to the actual quantity of goods or services produced during a specific period, as opposed to planned or projected amounts.

Materials Quantity Variance

The difference between the actual quantity of materials used in production and the standard quantity expected to be used.

Direct Materials Purchases Variance

The difference between the actual cost of direct materials purchased and the expected cost, based on standards set for quantity and price.

Actual Operations

The real-world activities carried out by a company, as opposed to planned or projected operations.