The Snake Family Typhlopidae Consists of Small,burrowing Species with Vestigial

question 20

Multiple Choice

The snake family Typhlopidae consists of small,burrowing species with vestigial eyes.They are found in Australia,sub-Saharan Africa,India and some adjacent areas,and South America.What is the most likely explanation for this distribution?

• A)rafting to the different continents from the point of origin on one of these continents
• B)convergent evolution in the different regions
• C)origin on Gondwana followed by continental drift and some range expansion
• D)all of the above

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Definitions:

Contingency Approaches

Management theories suggesting that the best management strategy depends on, and is contingent upon, various internal and external situations or variables.

Power-based Approaches

Strategies or methods that rely on authority, force, or leverage to influence or control outcomes.

Leadership Style

The distinct approach and manner in which an individual guides or influences a group towards goal achievement, ranging from autocratic to democratic.

Fiedler's Contingency Model

A leadership theory proposing that effective group performance depends on the proper match between a leader's style of interacting with subordinates and the degree to which the situation gives control and influence to the leader.