Question 1

Which of the following best describes the process of natural selection as proposed by Charles Darwin?

Accepted Answer

The environment selects for individuals with traits best suited for survival, allowing them to reproduce more successfully.

Question 2

The blue-footed booby, shown in the first image, is an example of a species found on the Galapagos Islands. Which concept does its unique foot coloration best illustrate?

Accepted Answer

Adaptation to a specific environment

Question 3

Refer to the diagram of finch beaks. What evolutionary process is primarily responsible for the diversity of beak shapes among Galapagos finches?

Accepted Answer

Divergent evolution due to adaptation to different ecological niches

Question 4

Which of the following statements about Lamarck’s theory of evolution is correct?

Accepted Answer

Lamarck believed that traits acquired during an organism’s lifetime could be inherited by offspring.

Question 5

Which of the following is NOT a condition necessary for natural selection to occur?

Accepted Answer

Unlimited resources

Question 6

The voyage of the H.M.S. Beagle was significant because it allowed Darwin to:

Accepted Answer

Observe a wide variety of species and collect evidence supporting natural selection

Question 7

Which of the following best explains why antibiotic resistance in bacteria is an example of natural selection?

Accepted Answer

Bacteria with resistance genes survive and reproduce more successfully when antibiotics are present.

Question 8

Which of the following is an example of a homologous structure?

Accepted Answer

The wings of a bat and the flippers of a whale

Question 9

What is the main difference between homologous and analogous structures?

Accepted Answer

Homologous structures share a common evolutionary origin but may have different functions; analogous structures have different origins but similar functions.

Question 10

Which of the following best describes the concept of evolutionary fitness?

Accepted Answer

The ability of an organism to survive and reproduce in its environment

Question 11

A population of moths is exposed to pollution that darkens tree bark. Over time, the frequency of dark-colored moths increases. Which evolutionary mechanism is at work?

Accepted Answer

Natural selection

Question 12

Which of the following is NOT evidence for evolution?

Accepted Answer

Random mating

Question 13

Which of the following scenarios best illustrates coevolution?

Accepted Answer

A cheetah evolves to run faster, and gazelles in the same environment also evolve to run faster.

Question 14

Which of the following is an example of a vestigial structure in humans?

Accepted Answer

Appendix

Question 15

Which of the following best explains why not all evolution is adaptive?

Accepted Answer

Some evolutionary changes are due to random genetic drift or mutations that do not necessarily improve fitness.

Question 16

Which of the following is a real-world example of convergent evolution?

Accepted Answer

The streamlined bodies of dolphins (mammals) and sharks (fish)

Question 17

Which of the following equations represents the Hardy-Weinberg equilibrium for allele frequencies in a population?

Accepted Answer

$$p^2 + 2pq$$ + $$q^2 = 1$

Question 18

Which of the following is a derived characteristic that distinguishes birds from other reptiles in a cladogram?

Accepted Answer

Feathers

Question 19

Why are transitional fossils, such as Tiktaalik, important for understanding evolution?

Accepted Answer

They provide evidence of intermediate forms between major groups, supporting the theory of descent with modification.

Question 20

Which of the following best describes artificial selection?

Accepted Answer

Humans selectively breed organisms with desirable traits, leading to changes in the population.

Evolution: Mechanisms, Evidence, and Patterns (Chapters 13-16)

Study Guide - Practice Questions

Study Guide - Flashcards