An Ecologist Is Studying the Growth Rate of Fish Populations

question 233

Multiple Choice

An ecologist is studying the growth rate of fish populations in the most pristine, untouched coral reef she can find.The reef is located in a protected natural area where no fishing or other human activities are allowed.What is the most scientifically appropriate way for her to make her study more modern, or "use-inspired"?

• A) Relocate the study to an area where fishing is allowed.
• B) Do the study in a laboratory setting instead of in nature.
• C) Measure mortality rate rather than growth rate.
• D) Keep the same study design, but periodically remove fish from the population.
• E) Set up a second study site in a fished area, and compare growth rates in the two areas.

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Definitions:

Contact Killing

A phenomenon where certain cells or materials can destroy microorganisms on direct contact, often used in reference to antimicrobial surfaces.

Cell-mediated Immunity

The aspect of immunity that is mediated by specialized cells known as T lymphocytes for defending the body against viral infections and cancer.

Cytotoxic T Cells

A type of white blood cell that kills cancer cells, cells that are infected with viruses, or cells that are damaged in other ways.

T Lymphocyte

A type of white blood cell that plays a central role in the immune response by attacking foreign invaders and cancer cells.