Reptiles Are Better Adapted to Life on Land Than Are

question 5

Multiple Choice

Reptiles are better adapted to life on land than are amphibians.Which external characteristic would a reptile have to lose to make it roughly externally equivalent to an amphibian in terms of ability to tolerate dry land?

• A)scales
• B)vertebral column
• C)eyelids
• D)limbs

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Definitions:

Spurious Relationship

A false association between two variables that appears to be causally linked but is actually due to an extraneous variable.

Nonexperimental Method

Use of measurement of variables to determine whether variables are related to one another. Also called correlational method.

Nonexperimental Method

A research method where the researcher observes and records behavior without manipulating any variables.

Experimental Control

The process of keeping variables constant or regulating external factors to ensure that observed effects are due to manipulated variables only.