Antonio's Car Stalls in the Middle of a Railroad Crossing

question 55

Multiple Choice

Antonio's car stalls in the middle of a railroad crossing just as a train is rapidly approaching.His emotional arousal is likely to be accompanied by

• A) a decreased blood sugar level.
• B) a decreased respiration rate.
• C) contraction of the arteries.
• D) dilation of his pupils.

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Definitions:

Cichlid Fishes

A diverse group of freshwater fish known for their bright colors and complex behaviors, particularly in mating and parenting.

Out Of Africa

A theory that suggests all modern humans originated from a common ancestral population in Africa before dispersing to other parts of the world.

Multiregional Model

A theory of human evolution proposing that modern humans originated from several different groups of homo sapiens spreading from Africa to other parts of the world.

Human Evolution

The lengthy process of change by which people originated from apelike ancestors, spanning millions of years.