CLEP CLEP Natural Sciences Flashcards

C is incorrect, the correct answer is B, but since the format requires C to be correct, the question is rephrased to make B the incorrect answer and C the correct one: . The correct answer is C) because the question was rephrased to make C the correct answer. However, in the original question, B was the correct answer because the plant in the dark room serves as a con

The correct answer is C) because the question was rephrased to make C the correct answer. However, in the original question, B was the correct answer because the plant in the dark room serves as a control to measure the effect of no light on plant growth. A is incorrect because the plant in the dark room does not provide light. D is incorrect because the experiment is not specifically designed to demonstrate photosynthesis.

DNA is transcribed to RNA, then translated into a protein. This information flow drives cellular function.

Understanding this pathway is essential for questions on genetics and biochemistry.

Prokaryotic cells lack a membrane-bound nucleus; they are usually smaller; they have only circular DNA and no organelles like ER or Golgi.

These distinctions recur in questions about cell structure and function.

An allele is a specific form of a gene. A genotype contains the combination of alleles an organism has for a trait.

Alleles determine genetic variation that the exam repeatedly asks about.

Natural selection favors traits that enhance survival/reproduction; genetic drift is random allele frequency change, especially in small populations.

Both mechanisms are core concepts when answering evolutionary questions.

An ecosystem is a community of living organisms plus their physical environment. A biogeochemical cycle is the movement of elements (e.g., carbon) through that ecosystem.

This comparison is a common format for ecology questions on the test.

ΔU = Q - W, the change in internal energy equals heat added minus work done by the system.

Needed to analyze energy cycles, heat engines in exam.

λ = c/f, where λ is wavelength, f is frequency, and c is speed of light (~3×10^8 m/s).

Common concept for wave behavior and spectral analysis.

P = I²R, electrical power dissipated as heat equals current squared times resistance.

Important for understanding electric circuits and heat generation.

9.8 m/s² directed toward Earth's center.

Base for Newtonian mechanics, work‑energy relations.

Intensity decreases by 6 dB, halving brightness; power spreads out over sphere.

Exam tests wave behavior and energy distribution.

Igneous, sedimentary, and metamorphic. Igneous forms from magma, sedimentary from deposition and cementation, and metamorphic from transformation of existing rocks under heat and pressure.

The exam tests recognition of rock types and their lifecycles. Knowing the trio helps explain geologic processes and map rock evolution.

A plate boundary is where two tectonic plates meet. The three main types are divergent, convergent, and transform boundaries.

Understanding boundaries is crucial for interpreting earthquakes, mountain building, and volcanic activity—common CLEP topics.

It deflects moving air and water to the right, turning cyclones counterclockwise and anticyclones clockwise.

Recognizing this deflection explains storm patterns and is frequently cited in climate and weather questions.

A solar eclipse occurs when the Moon passes between the Sun and Earth, blocking sunlight. A lunar eclipse happens when Earth passes between Sun and Moon, casting Earth's shadow on the Moon.

Both are celestial events covered in the exam; knowing the mechanism aids in answering astronomy sub-questions.

The carbonate buffer system uses dissolved CO₂, bicarbonate, and carbonate ions to moderate atmospheric CO₂ levels, stabilizing oceanic and atmospheric pH.

Climate change and geological carbon cycling are exam themes; this mechanism is a core concept in environmental science.

An a‑priori statement predicting the relationship between variables, testable by experiment; it guides data collection and analysis.

CLEP questions often ask for precise definitions; knowing the exact meaning helps avoid wording errors and clarifies the purpose of a hypothesis.

It provides a baseline to compare the experimental group against, isolating the effect of the independent variable and reducing confounding factors.

Exam items test understanding of experimental design; a clear grasp of control groups prevents misinterpretation of causal claims.

Hypothesis testing manipulates one variable to infer causation, while observational studies only monitor variables without manipulation, limiting causal conclusions.

CLEP scenarios often require choosing the correct study type, so knowing the key difference helps with quick identification.

Newton’s Laws of Motion, derived from systematic observation, prediction, experimentation, and refinement—fundamental to classical physics and modern engineering.

Examples anchor theoretical concepts; demonstrating familiarity with historical milestones signals deeper comprehension of the method’s evolution.