All Vertebrates Except ____ Have a Two-Circuit Circulatory System

question 33

Multiple Choice

All vertebrates except ____ have a two-circuit circulatory system.  

• A) fish
• B) mammals
• C) birds
• D) amphibians
• E) reptiles

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Definitions:

Independent Variable

A variable in research that is manipulated or changed to see if it produces an effect on the dependent variable.

Severe Storms

Powerful meteorological events characterized by strong winds, heavy rain, lightning, and possibly hail or tornadoes, causing significant damage and danger.

Reviewing The Literature

The process of summarizing and critically analyzing existing research and publications on a particular topic.

Cross-Tabulation

A table that shows how the categories of two variables are related.