Imagine That in One Portion of Their Range, Black Widowbird

question 10

Multiple Choice

Imagine that in one portion of their range, black widowbird numbers are declining due to the introduction of a non-native snake that eats their eggs and nestlings. The last two remaining females in this population disperse to join a different population that is 50 km away, where they breed with new males. If these females produce only sterile offspring as the result of mating with males in the new population, what type of reproductive isolation does this represent?

• A) post-mating barrier
• B) pre-mating barrier
• C) temporal barrier
• D) behavioral barrier

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Definitions:

Unit Cost Data

Information related to the cost required to produce one unit of a product or service, including materials, labor, and overhead expenses.

Single-Price Monopoly

A monopolistic market structure where the monopolist charges the same price for every unit of the product sold to every consumer.

Economically Inefficient

A situation where resources are not used in the most productive way, leading to wasted potential output or outcomes.