During the Course of Fish Evolution Two of the Gill

question 17

Multiple Choice

During the course of fish evolution two of the gill slits slowly evolved into ____________.

• A)gills
• B)the pectoral fins
• C)the swim bladder
• D)the jaw
• E)none of the above

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Broad and oversimplified generalizations about a group of people or things, often based on limited information.

SES

Socioeconomic status, a measure of an individual's or family's economic and social position relative to others, based on income, education, and occupation.

Confounding Variable

An external influence that can affect the results of a research study and is not controlled or accounted for by the researchers.

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Quantitative measures obtained from cognitive tests that aim to assess an individual's intellectual abilities compared to the general population.