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 type of immunity is acquired through exposure to an antigen?

Natural
Artifical
Adaptive
Passive

The correct answer is: Adaptive

Acquired immunity refers to the immune response that our body develops against a pathogen or antigen. This type of immunity is categorized into two types - natural and adaptive. Natural immunity is the one that we are born with, while adaptive immunity is developed through exposure to an antigen. This means that when our body encounters a foreign substance (antigen), it learns to recognize and fight it off, resulting in immunity against that antigen. Option A, natural immunity, is incorrect because it does not require exposure to an antigen. Option B, artificial immunity, is incorrect because it is developed through a vaccine or medical intervention, rather than exposure to an antigen. Option D, passive immunity, is incorrect because it is temporary and acquired from outside sources, such as a mother's antibodies to a newborn. Therefore, the correct answer is C, adaptive immunity, as it is acquired through exposure to an antigen.