Question

which of the following is true with respect to sexual orientation? researchers have been unable to pin down specific environmental factors that influence sexual orientation. same - sex attraction is unique to mammals. about a tenth of variation in sexual orientation is attributable to genetic influences. researchers have not found significant differences in brain structure and function between gay and straight people.

Explanation:

• Sexual orientation is a complex trait influenced by multiple factors. Research has not been able to clearly identify specific environmental factors that determine sexual orientation.
• Same - sex attraction is not unique to mammals; it has been observed in many other species.
• Genetic influences on sexual orientation are more significant than just about a tenth. Studies suggest a more substantial genetic component.
• Researchers have found differences in brain structure and function between gay and straight people.

Answer:

Researchers have been unable to pin down specific environmental factors that influence sexual orientation.