Why Are Stickleback Populations Especially Useful for Understanding Physiological Evolution

question 32

Multiple Choice

Why are stickleback populations especially useful for understanding physiological evolution?

• A) Sticklebacks are catadromous.
• B) Sticklebacks are found all over the world.
• C) There are many isolated populations of sticklebacks in landlocked freshwater lakes.
• D) Sticklebacks have been around as a species for millions of years.

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Definitions:

Androgynous

Possessing or exhibiting both masculine and feminine characteristics; often used in the context of gender identity and roles.

Expressive Traits

Personality attributes that involve external displays of emotions, feelings, and interpersonal communication.

Gender Identity

An individual's personal sense of their own gender, whether that aligns with their biological sex or not.

Highly Developed Countries

Nations with advanced economic systems, high standards of living, and robust infrastructure.