A Primary School Science Teacher Decided to Liven Up the Classroom

question 60

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.
-Normally, the clown fish readily swims among the tentacles of the sea anemones; the parrot fish avoids them. One hypothesis for the clown fish's apparent immunity is that they slowly build a tolerance to the sea anemone's toxin. A second hypothesis is that a chemical in the mucus that coats the clown fish prevents the nematocysts from being triggered. Which of the following graphs supports the second, but not the first, of these hypotheses?

Learn strategies for cultivating a "you attitude" in communication.

Understand different listening habits and their impacts on communication.

Recognize the components and significance of positive stroke in communication.

Comprehend the Johari Window model and its areas.

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Definitions:

FIFO Cost Assumption

"First-In, First-Out," an inventory costing method that assumes the first items put into inventory are the first ones sold, affecting the calculation of cost of goods sold and ending inventory.

Perpetual

A system or inventory accounting method where updates are made continuously to record every sale or purchase.

Periodic Inventory System

An inventory system under which the company does not keep detailed inventory records throughout the accounting period but determines the cost of goods sold only at the end of an accounting period.

Auto Manufacturer

A company that specializes in producing and selling automobiles.