The Following Questions Refer to This Hypothetical Situation

question 60

Multiple Choice

The following questions refer to this hypothetical situation.
A female fly,full of fertilized eggs,is swept by high winds to an island far out to sea.She is the first fly to arrive on this island and the only fly to arrive in this way.Thousands of years later,her numerous offspring occupy the island,but none of them resembles her.There are,instead,several species,each of which eats only a certain type of food.None of the species can fly,for their flight wings are absent,and their balancing organs (in other words,halteres) are now used in courtship displays.The male members of each species bear modified halteres that are unique in appearance to their species.Females bear vestigial halteres.The ranges of all of the daughter species overlap.
-If these fly species lost the ability to fly independently of each other as a result of separate mutation events in each lineage,then the flightless condition in these species could be an example of

• A)adaptive radiation.
• B)species selection.
• C)sexual selection.
• D)allometric growth.

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Definitions:

Gender Norms

Expectations and behaviors considered culturally appropriate for individuals based on their perceived or assigned gender.

Expectations

Beliefs or anticipations about the way things should be or how events will unfold.

Gender Roles

The culture’s expectations for male or female behavior, including attitudes, actions, and personality traits associated with being male or female in that culture.

Social Learning Theory

A theory that posits learning happens through observing others, imitating their actions, and noting the consequences of these actions.