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!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the role of the circulatory system?

Regulate blood pressure
Interact with immune system
Maintain fluid balance
Transport oxygen

The correct answer is: Transport oxygen

The circulatory system is made up of various organs, such as the heart, blood vessels, and blood, and is responsible for transporting oxygen and needed nutrients to different parts of the body. This is essential for the proper functioning of our cells and organs. While options A, B, and C may seem related to the circulatory system, they are not its primary role and can also be performed by other systems in the body. For example, regulating blood pressure is primarily controlled by the nervous and endocrine systems, interacting with the immune system is a function of the lymphatic system, and maintaining fluid balance is mostly controlled by the urinary and integumentary systems. Therefore, the main role of the circulatory system is to transport oxygen and nutrients throughout the body.