Scientists Want to Determine Whether Chemical X, a Component of Fertilizer

question 12

Multiple Choice

Scientists want to determine whether chemical X, a component of fertilizer, is harmful to fish. They treat fish in the laboratory with increasing amounts of the chemical for one week and then measure their viability. Fish that are not treated with chemical X are considered ____.

• A) experimental data
• B) controls
• C) replicates
• D) experimental variables
• E) the null hypothesis

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Definitions:

Un-air-conditioned Car

A vehicle lacking a system to cool and dehumidify the air inside, potentially leading to discomfort in warm weather conditions.

Risky Shift

The phenomenon where groups tend to make riskier decisions together than individuals would on their own.

Choice Dilemmas Questionnaire

A psychological assessment tool that measures an individual’s decision-making process when faced with moral dilemmas.

Group Polarization

The tendency for a group to make decisions that are more extreme than the initial inclination of its members.