Jack and Emily Are Twins

question 96

Multiple Choice

Jack and Emily are twins. Because he is a boy, Jack's dad and mom encourage him to run. On the other hand, Jack's mom and dad discourage Emily from engaging in athletic activity. As a result Jack is much faster at running than Emily is. What best explains the difference in Jack and Emily's behaviour?

• A) nonshared environmental influences
• B) active gene-environment relations
• C) polygenetic effects
• D) niche-picking

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Definitions:

Constant Darkness

An environmental condition characterized by the absence of light for an extended period, affecting biological rhythms and behaviors in organisms.

Hibernation

A state of inactivity and metabolic depression in animals during winter to conserve energy, often involving significantly lowered body temperature and slowed breathing.

Annual Reproductive Cycle

A periodic sequence of events through which an organism reproduces, completing the cycle within one year.

Hormone's Activational Effect

The immediate influence or action of hormones on the body, affecting behavior, physiology, or development.