CAMPBELL BIOLOGY IN FOCUS 3RD EDITION
COMPREHENSIVE EXAM 2026 QUESTIONS
WITH SOLUTIONS GRADED A+
◉ Which of the following best demonstrates the unity among all
organisms?
A) Emergent properties
B) Descent with modification
C) DNA structure and function
D) Natural selection. Answer: D) Natural Selection
◉ A controlled experiment is one that
A) Proceeds slowly enough that a scientust can make careful records of
the results
B) Tests experimental and control groups in parallel
C) Is repeated many times to make sure the results are accurate
D) Keeps all varibles constant. Answer: B) Tests experimental and
control groups in parallel
, ◉ Which of the following statements best distinguishes hypotheses from
theories in science?
A) Theories are hypotheses that have been proved
B) Hypotheses are guesses; theories are correct answers
C) Hypotheses usually are relatively narrow in scope; theories have
broad explanatory power
D) Theories are proved true; hypotheses are often contradicted by
experimental results. Answer: C) Hypotheses usually are relatively
narrow in scope; theories have broad explanatory power
◉ Which of the following best describes the logic of scientific inquiry?
A) If I generate a testable hypothesis, tests and observations will support
it
B) If my prediction is correct, it will lead to a testable hypothesis
C) If my observations are accurate, they will support my hypothesis
D) If my prediction is correct, my hypothesis is supported. Answer: D) If
my prediction is correct, my hypothesis is supported
◉ The reactivity of an atom arises from
A) The average distance of the outermost electron shell from the nucleus
B) The existence of unpaired electrons in the valence shell
COMPREHENSIVE EXAM 2026 QUESTIONS
WITH SOLUTIONS GRADED A+
◉ Which of the following best demonstrates the unity among all
organisms?
A) Emergent properties
B) Descent with modification
C) DNA structure and function
D) Natural selection. Answer: D) Natural Selection
◉ A controlled experiment is one that
A) Proceeds slowly enough that a scientust can make careful records of
the results
B) Tests experimental and control groups in parallel
C) Is repeated many times to make sure the results are accurate
D) Keeps all varibles constant. Answer: B) Tests experimental and
control groups in parallel
, ◉ Which of the following statements best distinguishes hypotheses from
theories in science?
A) Theories are hypotheses that have been proved
B) Hypotheses are guesses; theories are correct answers
C) Hypotheses usually are relatively narrow in scope; theories have
broad explanatory power
D) Theories are proved true; hypotheses are often contradicted by
experimental results. Answer: C) Hypotheses usually are relatively
narrow in scope; theories have broad explanatory power
◉ Which of the following best describes the logic of scientific inquiry?
A) If I generate a testable hypothesis, tests and observations will support
it
B) If my prediction is correct, it will lead to a testable hypothesis
C) If my observations are accurate, they will support my hypothesis
D) If my prediction is correct, my hypothesis is supported. Answer: D) If
my prediction is correct, my hypothesis is supported
◉ The reactivity of an atom arises from
A) The average distance of the outermost electron shell from the nucleus
B) The existence of unpaired electrons in the valence shell
