Which of the Following Is Correct When Describing a Predator-Prey

question 25

Multiple Choice

Which of the following is correct when describing a predator-prey cycle?

• A) A decline in the numbers of predators causes a decline in the number of prey.
• B) A decline in the numbers of prey causes a decline in the number of predators.
• C) An increase in the number of predators triggers an increase in the number of prey.
• D) An up-and-down cycle will be seen for the prey animal.
• E) A seasonal die-off that will occur without the other species present.

---

Definitions:

PET Scan

Positron Emission Tomography, a sophisticated imaging technique that uses radioactive substances to visualize and measure changes in metabolic processes and in other physiological activities including blood flow, regional chemical composition, and absorption.

Tracer

A radioactive substance used in medical imaging or scientific research to track the presence or distribution of substances within the body or environment.

Scintigraphy

A diagnostic imaging technique using radioactive substances to visualize and measure the function of organs and tissues.

Balloon Angioplasty

A medical procedure that uses a balloon-tipped catheter to widen narrowed or blocked arteries, typically to treat cardiovascular disease.