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CLEP Natural Science Practice Tests & Test Prep by Exam Edge - Why Exam Edge

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Exam Edge has been an industry leader in online test preparation for nearly two decades. Our practice tests are designed to give you the most effective exam prep experience, with flexible features to suit your unique studying approach. Read on to learn what sets our practice tests apart from the rest.

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Why Choose Exam Edge for your CLEP Natural Science () Exam prep?

Benefits of Exam Edge CLEP Natural Science Practice Tests & Test Prep

Exams like the CLEP Natural Science exam do not just measure what you know -- they also test how well you perform under pressure. The right type of test preparation helps you familiarize yourself with both the material you are being tested on and the format of the test itself. Our practice tests, exam flashcards, and other test prep resources are carefully crafted to replicate the experience of taking the CLEP Natural Science exam to make you maximally prepared for the demands of test day.

Looking to level up your test prep routine? Here are five reasons you should incorporate practice tests from Exam Edge into your CLEP Natural Science test prep strategy:

  • In-depth explanations for every practice test question and answer: Once you complete a practice exam, we give you detailed explanations of each correct and incorrect practice exam question answer. We also provide a summary of the number of practice test questions you answered correctly, and an estimate of your score as you would receive on the real exam. Use this combination of quantitative and qualitative insights to get a comprehensive picture of your readiness for the CLEP Natural Science exam!

  • Realistic CLEP Natural Science practice test questions: Our practice tests are designed to have a similar feel to the real test. From the type and number of questions to the default time limit for each practice exam, our CLEP Natural Science questions mimic those that are found on the real exam. This way, when you take the actual test, you will already be familiar with the test's navigation, structure, and flow. The psychological benefits of this kind of practice are significant. Once you eliminate the stress and distraction of unfamiliar test software or formatting, your brain is freed up to focus on each question.

  • Easy-to-access resources for your on-the-go lifestyle: Our practice tests are web-based, so there is no software to install and no files to download. Just log in to for access to your CLEP Natural Science practice tests on any smartphone, tablet, or computer with an internet connection. Chip away at your exam prep from home, work, campus, your favorite coffee shop, or wherever life takes you.

  • Flexible timed and untimed CLEP Natural Science practice tests:Use our 3 different test-taking modes for different kinds of test preparation. You can pause a practice test and continue right where you left off with the same amount of time you had remaining. You can learn more about these unique functions in our CLEP Natural Science practice test features.

  • A brand you can trust: As an "A+" rated, fully accredited member of the Better Business Bureau, Exam Edge upholds the highest level of business standards, and our proof of success is with our customers. We have heard from countless test-takers who told us they failed their certification exams until they found us and added our practice tests to their exam preparation plans. We are driven by a genuine passion for helping test-takers succeed, and we cannot wait to help you start or continue your journey to passing the CLEP Natural Science }!

    Learn more about Exam Edge, and what makes us right for you on your test prep journey!

All in all, the most effective study plan involves regular practice-testing to exercise your recall skills, practicing your time management, and increasing your focus and test-taking stamina. Invest your study time in our CLEP Natural Science practice exams and walk into test day confident, and ready to demonstrate your skills.

Need more convincing? Take your first practice test on us and see firsthand how practice tests can transform your CLEP Natural Science test prep. Learn how to get a free CLEP Natural Science practice test, and start test-prep today!

How to Use the CLEP Natural Science Practice Test

Our practice tests offer the ultimate flexibility to study whenever, wherever, and however you choose. We offer three modes to engage with your CLEP Natural Science practice exam:

  1. Timed Mode: Take a practice test in the timed mode to mimic the experience you will have on test day.

  2. Untimed Mode: Our untimed practice tests. Use this function to evaluate your knowledge without the added pressure of a ticking timer.

  3. Study Guide Mode: Our unique study guide function shows the in-depth explanations for each practice exam question as you work through the test. Use this version to work through the questions at your own pace and take detailed notes on the answers.
Need to pause while taking one of our practice tests? No problem! Whichever mode you use, you can pause and resume it at your leisure. When you continue the test, you will pick up exactly where you left off. If you are taking a timed practice test, you will have the same amount of time left to work through the remaining CLEP Natural Science practice exam questions once you resume.

Once you have completed a practice exam, you will have permanent access to that exam's review page which includes a detailed explanation for each practice test question. Are you confused by a particular question on the practice test you just completed? Simply come back to it after you have completed it and get a detailed explanation of what the correct answer is and why.

Unlike other study tools, practice exams offer the unique benefit of helping you chart your progress and improvement. Start your CLEP Natural Science exam preparation by taking a practice test to assess your baseline expertise and existing test-taking skills. Then, use your results to identify which topics and skills need the most improvement, and create a study plan that targets those areas. As you study from books, notes, exam flashcards, or other methods, take additional practice tests at regular intervals to evaluate how you retain the information.

CLEP Natural Science - Why Exam Edge Sample Questions

Which of the following is the study of evolutionary relatedness among groups of organisms that is explored using molecular sequencing data? Those groups can be species or populations.

Correct Answer:
the correct answer to the question is phylogenetics.

phylogenetics is the branch of biology that deals with the evolutionary development and diversification of a species or group of organisms. this field specifically focuses on understanding the evolutionary interrelationships among various biological species or entities based upon similarities and differences in their physical and/or genetic characteristics.

the primary tool used in phylogenetics is molecular sequencing data. by comparing the genetic sequences of different organisms, scientists can infer the evolutionary relationships among them. this comparison often involves examining dna, rna, or protein sequences to construct a phylogenetic tree—a diagrammatic hypothesis that proposes evolutionary relationships.

evolutionary relationships are crucial in understanding how different species have evolved from common ancestors. over time, evolutionary processes such as mutation, natural selection, and genetic drift influence the development of species, leading to speciation (the formation of new and distinct species in the course of evolution). phylogenetics helps in mapping out these relationships, providing a visual representation of how different groups have diverged from one another over time.

in your question, other options such as microevolution, gene biology, and taxonomy, although related, focus on different aspects of biological sciences: - microevolution refers to changes within a species or small group of organisms over a short period. - gene biology (often considered part of genetics) focuses on the structure and function of genes at a molecular level. - taxonomy is the science of classification, including the systematic classification of organisms into a hierarchy of taxa (like species, genus, family, etc.), but it does not primarily deal with evolutionary relationships or molecular data.

therefore, the study of evolutionary relatedness among different groups, using molecular sequencing data, is most accurately described by phylogenetics. this field provides insights into the evolutionary history of life on earth, helping scientists understand the genetic connections and divergences among all forms of life.

After topoisomerase relaxes the coiled DNA into two straight strands, what is the name of the protein that chemically separates the two strands to create the replication fork and allowing DNA replication to begin?

Correct Answer:

the correct answer to the question is "helicase." this is because after the topoisomerase enzyme relaxes the supercoiled dna, making the strands more accessible, it is the role of the helicase enzyme to separate these two strands. this separation is crucial as it sets the stage for dna replication.

helicase works by breaking the hydrogen bonds between the nitrogenous base pairs of the dna molecule. as it travels along the dna, helicase unwinds the double helix structure into two single strands. this unwinding process creates what is known as the replication fork - a y-shaped region where the dna is split into two separate strands. each strand then serves as a template for building a new complementary strand.

the action of helicase is essential for the initiation of dna replication because it provides the necessary single-stranded dna templates that polymerases need to synthesize new dna strands. without the activity of helicase, the tightly wound strands of the double helix would not be accessible, and replication could not proceed. therefore, helicase plays a pivotal role in ensuring that dna replication occurs efficiently and accurately within the cell.