An Ecologist Conducts a Greenhouse Experiment to Study the Effect

question 17

Multiple Choice

An ecologist conducts a greenhouse experiment to study the effect of nitrogen concentration on the productivity of sunflower seedlings.What is the independent variable in this experiment?

• A)productivity of sunflowers
• B)concentration of nitrogen
• C)the number of sunflower seeds planted
• D)the daily amount of water given to each sunflower seed

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Definitions:

Cognitive Processes

The mental actions or operations that support learning, understanding, problem-solving, and decision-making.

Stimulus

Any external event or situation that influences the behavior or responses of an organism, prompting a physiological or psychological reaction.

Response

A reaction or reply to a particular stimulus or situation.

Collective Efficacy

The shared belief in a group's capability to organize and execute the actions required to achieve given objectives, often linked to community and social outcomes.