In Class Your Professor Shows You an MRI Scan of a Primate

question 41

Multiple Choice

In class your professor shows you an MRI scan of a primate brain. The professor points out the relatively large size of the olfactory bulb beneath the frontal lobe. This suggests to you that:

• A) this primate exhibits a derived trait for an enhanced sense of smell, since this trait is not commonly observed in mammal species.
• B) this is a species of anthropoid because it has an increased reliance on vision.
• C) this primate must be a species of prosimian, as that suborder of primates still relies heavily on the sense of smell for many aspects of daily life.
• D) this species is nocturnal.

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Definitions:

Directional Research Hypothesis

A hypothesis that indicates the anticipated direction of the difference or relationship among variables.

Null Hypothesis

A type of hypothesis used in statistics that proposes that no statistical significance exists in a set of given observations.

Research Hypothesis

A specific, testable prediction about the expected outcome of a study.

Representative Sample

A segment of the population that precisely mirrors the characteristics of the whole population.