The Ultimate Source of All Energy in a Terrestrial Ecosystem

question 18

Multiple Choice

The ultimate source of all energy in a terrestrial ecosystem is

• A) the organic matter in all the organisms of the ecosystem.
• B) electrons from water molecules.
• C) sunlight.
• D) ATP.
• E) inorganic mineral ions in the soil.

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Definitions:

Laboratory Observation

A research method where subjects are observed in a controlled environment to ensure accuracy of findings.

Control

The power or authority to direct, manage, or govern actions or outcomes.

Questionnaire

A structured series of questions used to gather information from respondents for research purposes.

Written Interview

A method of gathering information or assessing qualifications where questions are sent in written form for the respondent to answer also in writing.