Biology CLEP Prep Practice Exam

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Prepare for the Biology CLEP Test with comprehensive flashcards and multiple choice questions. Each question comes with explanations and hints to ensure a full understanding. Boost your exam readiness today!

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What is the scientific term for an organism's regular circadian rhythm?

Photoperiodism
Endothermy
Chronobiology
Phototropism

The correct answer is: Chronobiology

Chronobiology is the scientific term for an organism's regular circadian rhythm. Photoperiodism (A) refers to the response of an organism to the length of day or night. Endothermy (B) is the ability of an organism to regulate its own body temperature. Phototropism (D) is the movement or growth in response to light. While these terms are related to an organism's daily routine, they do not specifically refer to the regular circadian rhythm. Therefore, Chronobiology is the most accurate term for this concept.