You Are a Student Working in the Laboratory of a Researcher

question 23

Multiple Choice

You are a student working in the laboratory of a researcher who studies rainbow trout. A power outage over the weekend results in temperatures of over 25C in the large pools which house the fish. When you arrive Monday morning you notice the fish are swimming on their sides or swimming in spirals. What conclusions can you draw?

• A) the fish are suffering thermal stress
• B) the fish are experiencing improper neuronal function
• C) the affinity of acetylcholinesterase for acetylcholine is reduced
• D) the temperature of the water is affecting fish enzyme shape and flexibility
• E) All of the choices are correct.

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Definitions:

Smell

A sense that enables the perception of odors, essential for taste and often involved in memory.

Hearing

The sensory process that enables the reception and perception of sound by the auditory system.

Vision

The sense by which light stimuli received by the eye are interpreted by the brain and constructed into a representation of the surrounding environment.

Corpus Callosum

Thick band of neurons that connects the right and left cerebral hemispheres.