Biologists Sometimes Divide Living Organisms into Two Groups

question 29

Multiple Choice

Biologists sometimes divide living organisms into two groups:
Autotrophs and heterotrophs.How do these two groups differ?

• A)They use different sources of energy.
• B)They use different electron acceptors.
• C)They use different sources of carbon.
• D)They differ in the way they generate ATP.

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Definitions:

Degrees Of Freedom

The number of values in a statistical calculation that are free to vary for the purpose of estimating a parameter or fitting a model.

Two Way ANOVA

A statistical test used to determine the effect of two nominal predictor variables on a continuous outcome variable.

Interaction

In statistics, an occurrence when the effect of one variable depends on the level of another variable.

Main Effects

Refers to the direct impact of independent variables on dependent variables in a statistical model, without considering interactions between variables.