Synechococcus, a Cyanobacterium, Is a Free-Living Marine Organism That Fixes

question 19

Multiple Choice

Synechococcus, a cyanobacterium, is a free-living marine organism that fixes CO₂ into biomass while producing molecular oxygen utilized by swarms of heterotrophic bacteria. Which of the following is the most likely habitat of this bacterium?

• A) euphotic zone of the pelagic environment
• B) the benthos
• C) the littoral zone
• D) lake sediments
• E) aphotic zone

Master reducing fractions to their lowest terms.

Understand and apply fraction multiplication and the reduction of products to lowest terms.

Compute total amounts across various practical contexts (e.g., agricultural plots, travel distances, jewelry making).

Change fractions to higher terms respecting given denominators.

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Definitions:

Informed Consent

A process in which participants are fully informed about the procedures and potential risks of a study and voluntarily agree to participate.

Minimal Risk

A research condition where the probability and magnitude of harm are no greater than those encountered in daily life or during routine physical or psychological examinations.

Greater Than Minimal Risk

Describes research situations where the probability and magnitude of harm or discomfort anticipated in the research are greater than those ordinarily encountered in daily life or during the performance of routine physical or psychological examinations or tests.

Full IRB Review

A full IRB review is a thorough examination by an Institutional Review Board of proposed research protocols that involve human subjects, to ensure the study's ethical and legal appropriateness.