If Two Variables, X and Y, Have a Strong Linear

question 27

Multiple Choice

If two variables, x and y, have a strong linear relationship, then _____.

• A) there may or may not be any causal relationship between x and y
• B) x causes y to happen
• C) y causes x to happen
• D) None of the answers is correct.

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Definitions:

Agar

Agar is a gelatinous substance derived from red algae that is used as a growth medium in microbiological work, as well as a thickener in food products.

Red Algae

Marine photosynthetic protists with a notable abundance of phycobilin pigments; includes coralline algae of coral reefs.

Protozoans

Diverse group of unicellular eukaryotic organisms, often considered as "animal-like" protists, that inhabit water or soil.

Heterotrophic

Heterotrophic organisms are those that obtain their food and energy by consuming other organisms or organic matter because they cannot synthesize their own food.