Question 1

Which of the following best describes the scientific theory of evolution?

Accepted Answer

A well-supported explanation that integrates and explains a wide range of observations about the diversity and unity of life.

Question 2

Which statement correctly distinguishes a scientific theory from a hypothesis?

Accepted Answer

A theory is a comprehensive explanation supported by evidence, while a hypothesis is a tentative explanation that can be tested.

Question 3

Which of the following is an example of artificial selection?

Accepted Answer

The development of different breeds of dogs through selective breeding by humans.

Question 4

Darwin’s phrase 'descent with modification' is best summarized as:

Accepted Answer

Current species are descendants of ancestral species that have accumulated differences over time.

Question 5

Which observation and inference pair did Darwin use to explain natural selection?

Accepted Answer

Observation: All species can produce more offspring than the environment can support. Inference: Individuals with favorable traits are more likely to survive and reproduce.

Question 6

Which of the following is NOT a key feature of natural selection?

Accepted Answer

Natural selection creates new traits in response to environmental changes.

Question 7

Which scenario best illustrates evolution by natural selection in a real-world context?

Accepted Answer

A population of bacteria exposed to antibiotics develops resistance over several generations.

Question 8

How does the fossil record provide evidence for evolution?

Accepted Answer

It documents the pattern of evolution, showing changes in species over time and the appearance of new groups.

Question 9

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

Accepted Answer

Wisdom teeth

Question 10

Why do species on ocean islands often resemble species from the nearest mainland, even if the environments are different?

Accepted Answer

Because island species are descended from mainland colonists and adapted to new conditions.

Question 11

Which of the following best explains why MRSA (methicillin-resistant Staphylococcus aureus) has become a dangerous pathogen?

Accepted Answer

MRSA bacteria use a different protein for cell wall synthesis, allowing them to survive and reproduce when exposed to methicillin.

Question 12

Which of the following is an example of homology?

Accepted Answer

The similar bone arrangement in the forelimbs of humans, cats, whales, and bats.

Question 13

Which statement about convergent evolution is correct?

Accepted Answer

It results in similar structures in unrelated species due to similar environmental pressures.

Question 14

According to the theory of plate tectonics, what is the main reason for the current distribution of continents and many species?

Accepted Answer

Continents drift on Earth's crust, leading to geographic isolation and speciation.

Question 15

Which of the following best describes the process of fossil formation?

Accepted Answer

Organisms are quickly buried by fine sediments, and minerals replace their remains over time.

Question 16

Which of the following is a correct application of Darwin’s theory to the evolution of tuskless elephants in Mozambique?

Accepted Answer

Poaching selected against tusked elephants, so tuskless individuals survived and reproduced more, increasing the frequency of tusklessness.

Question 17

Which of the following is NOT evidence for evolution?

Accepted Answer

The inability of species to adapt to new environments.

Question 18

Which of the following best explains why natural selection does not create new traits?

Accepted Answer

Natural selection only acts on traits already present in the population.

Question 19

Which of the following is a correct example of biogeography supporting evolution?

Accepted Answer

Species on the Galápagos Islands resemble species from South America, supporting the idea of common ancestry and adaptation to new environments.

Question 20

Which of the following equations best represents the process of descent with modification as described by Darwin?

Accepted Answer

$$ 	ext{Descent with Modification} = 	ext{Shared Ancestry} + 	ext{Accumulation of Differences} $$

Descent with Modification: An Introduction to Darwinian Evolution (Chapter 19)

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