Two Sources of Visual Information Which Might Be Used to Guide

question 34

Multiple Choice

Two sources of visual information which might be used to guide human locomotion are optic flow and perceived visual direction. The evidence suggests that:

• A) Optic flow is always used
• B) Visual direction is always used
• C) Both are used, but their relative importance depends on circumstances
• D) Neither is used

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Definitions:

Metabolism

The sum of the chemical reactions that occur in a cell.

Autosomal Dominant

A pattern of inheritance where a trait can be expressed in an individual who has one copy of a gene associated with a trait.

Heterozygote

An organism having two different alleles of a specific gene, resulting in a mixed genotype.

Phenotypic

Relating to the observable characteristics or traits of an organism, which result from the interaction of its genotype with the environment.