Natural Science CLEP Prep Practice Exam

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Prepare for the CLEP Natural Science Exam with our comprehensive study materials and practice questions. Test your knowledge and ace the exam by mastering key concepts.

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 basic unit of scientific investigation?

Hippocampus
Immune system
Organism
Cell

The correct answer is: Cell

The basic unit of scientific investigation is a cell. While a Hippocampus and Immune system are both important structures in the body, they are not the smallest unit of scientific investigation. An organism is also a larger structure composed of many cells, making it incorrect. A cell, on the other hand, is the most fundamental unit of life and is where scientific investigations begin. It is the building block of all living things and contains all the necessary components for studying and understanding biological processes. Therefore, D is the best and most accurate answer.