If Professor Jung Wants to Be Able to Draw Cause

question 78

Multiple Choice

If Professor Jung wants to be able to draw cause and effect conclusions from her research, which of the following is the most crucial aspect of her experimental design?

• A) hypothesis formulation
• B) random assignment
• C) data recording
• D) control group size

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Definitions:

Clock Proteins

Molecular components that constitute the biological clock, regulating circadian rhythms in organisms by oscillating in a 24-hour cycle.

Biological Clocks

Mechanisms by which activities of organisms are adapted to regularly recurring changes in the environment. See circadian rhythm.

Feedback Loops

Systems within biological and ecological processes that regulate themselves through cycles of feedback information.

Sign Stimulus

A specific trigger from the environment that elicits an innate behavior in an animal.