Which Statement About the Startle Response of the Cockroach Is

question 58

Multiple Choice

Which statement about the startle response of the cockroach is true?

• A) Vibrations of hairs generate nerve impulses in sensory neurons.
• B) Sound waves or air currents synapse with the filiform hairs.
• C) Sensory neurons synapse with and excite the dorsal hollow spinal cord.
• D) At the metathoracic ganglion, the interneurons synaptically inhibit leg motor neurons.

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Definitions:

Heterozygote Advantage

The phenomenon where individuals with two different alleles for a particular trait have a greater fitness than those with two identical alleles.

Frequency-Dependent Selection

A process of evolution whereby the success and reproductive viability of a genotype or phenotype is influenced by its commonness or rarity in comparison to other genotypes or phenotypes within the same population.

Genetic Drift

A mechanism of evolution that results in random changes in the allele frequencies of a population, often having a larger effect in small populations.

Gene Flow

The transfer of genetic variation from one population to another, which can lead to changes in the genetic composition of both populations.