One Hypothesis Explaining Animals' Abilities to Detect a Magnetic Field

question 54

Multiple Choice

One hypothesis explaining animals' abilities to detect a magnetic field and use it to navigate is that sensory cells detect electrical fluctuations influenced by Earth's magnetic field. Which of the following pieces of evidence, if it were true, would support this hypothesis?

• A)Sensory cells of an organism known to use magnetic fields to navigate show an increase in action potential firing when in the presence of electrical fluctuations.
• B)Sensory cells of an organism known to use magnetic fields to navigate show a decrease in action potential firing when in the presence of electrical fluctuations.
• C)Sensory cells of an organism known to use magnetic fields to navigate show a greater density of negative ions on the outside of its plasma membrane.
• D)Sensory cells of an organism known to use magnetic fields to navigate produce greater amounts of enzymes sensitive to electrical fluctuations.

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Definitions:

Limited Resources

The finite availability of inputs such as time, money, labor, and materials, which restricts the ability to meet demand or achieve certain objectives.

Maximizes Profit

A strategy or action aimed at increasing the difference between total revenue and total costs to the highest possible level.

Constraints

are limitations or restrictions that affect the strategies and outcomes of a decision-making process or production operation.

Region Of Optimality

The set of all solutions that optimizes a given objective function within a feasible region.