We Can Localize a Sound, or Tell from Where It

question 176

Multiple Choice

We can localize a sound, or tell from where it is coming, because __________.

• A) we have ears on each side of our head
• B) we can compare the signal received by the left and right ears
• C) we can turn our head to determine how the arrival of the sound at the two ears changes
• D) all of the above

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Definitions:

Epistatic Effects

Interactions between different gene loci where the effect of one gene is modified by the presence or absence of one or more 'modifier genes'.

Quantitative Trait

A measurable phenotype that depends on the cumulative actions of many genes and possibly environmental factors.

Fitness Function

A concept used in genetics and evolutionary biology to measure an organism's ability to survive and reproduce.

Directional

Pertaining to or indicating the direction in which something is moving or facing; also refers to evolutionary changes in a population that favor a specific set of traits.