Two Populations of Birds with Somewhat Different Colouration Live on Opposite

question 54

Multiple Choice

Two populations of birds with somewhat different colouration live on opposite sides of a peninsula. The habitat between the populations is not suitable for these birds. When birds from the two populations are brought together, they produce young whose appearance is intermediate between the two parents. These offspring will breed with each other or with birds from either parent population, and all offspring of these pairings appear intermediate to various degrees.
What keeps the two populations separate?

• A) temporal reproductive isolation
• B) lack of hybrid viability
• C) behaviour isolates reproductive activities
• D) habitat isolation

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Definitions:

Hegemonic Masculinity

A concept used in gender studies to describe the practice that guarantees the dominant social position of men, and the subordinate social position of women.

Intersexed

A term used to describe individuals born with reproductive or sexual anatomy that doesn’t fit typical definitions of male or female.

Hermaphrodites

Organisms that possess both male and female reproductive organs, allowing them to perform both reproductive roles.

Hegemonic Masculinity

A concept that explains the dominance of certain cultural norms of masculinity over others, making them appear natural and enforcing a gender hierarchy.