What Organism Today Is Most Similar to the First Cells

question 32

Multiple Choice

What organism today is most similar to the first cells on Earth?

• A) diatoms
• B) protists
• C) insects
• D) bacteria
• E) yeast

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Definitions:

Independent Variables

The variables in an experiment that are manipulated by the researcher to explore their effect on dependent variables.

True Experimental Design

A research design that includes random assignment of participants to groups and manipulation of an independent variable to determine its effect on a dependent variable.

Cost

The expenditure or amount of resources (financial, time, labor) required to achieve something.

Time-Series Designs

Research designs that involve repeated measurements of dependent variables over time, both before and after a treatment or intervention, to assess change.