Question 1

Which of the following best describes the concept of 'descent with modification' as proposed by Charles Darwin?

Accepted Answer

The accumulation of inherited changes in populations over generations, leading to evolutionary adaptations.

Question 2

Which of the following is NOT a requirement for a population to be in Hardy-Weinberg equilibrium?

Accepted Answer

Natural selection is acting on the population.

Question 3

A population of beetles has two alleles for shell color: G (green) and g (brown). If the frequency of G is $$p = 0.7$$ and the frequency of g is $$q = 0.3$$, what is the expected frequency of heterozygotes under Hardy-Weinberg equilibrium?

Accepted Answer

$$2pq = 0.42$$

Question 4

Which of the following is an example of a postzygotic reproductive barrier?

Accepted Answer

Reduced hybrid fertility

Question 5

Which evolutionary mechanism is the only one that consistently leads to adaptive evolution?

Accepted Answer

Natural selection

Question 6

A small group of finches colonizes a new island, and over time, their gene pool differs significantly from the original population. This is an example of:

Accepted Answer

The founder effect

Question 7

Which of the following best explains why prokaryotes can evolve rapidly?

Accepted Answer

They are haploid and reproduce rapidly, so mutations can quickly affect the population.

Question 8

Which of the following is a correct statement about artificial selection?

Accepted Answer

It involves the selective breeding of organisms to promote desirable traits.

Question 9

Which of the following is an example of an exaptation?

Accepted Answer

The evolution of feathers originally for insulation, later used for flight.

Question 10

Which of the following statements about the biological species concept is FALSE?

Accepted Answer

It can be used to classify asexually reproducing organisms.

Question 11

Which of the following is the ultimate source of genetic variation in populations?

Accepted Answer

Mutation

Question 12

Which of the following is NOT a function of prokaryotes in the environment?

Accepted Answer

Formation of multicellular tissues in animals

Question 13

Which of the following best describes the difference between homologous and analogous structures?

Accepted Answer

Homologous structures are similar due to common ancestry, while analogous structures are similar due to convergent evolution.

Question 14

Which of the following is a prezygotic reproductive barrier?

Accepted Answer

Behavioral isolation

Question 15

Which of the following events marks the beginning of the Cenozoic era according to the geologic time scale?

Accepted Answer

Extinction of dinosaurs

Question 16

Which of the following is a characteristic of Archaea but NOT Bacteria?

Accepted Answer

Ability to survive in extreme environments such as hot springs and high salinity.

Question 17

Which of the following best describes the role of gene flow in evolution?

Accepted Answer

It reduces genetic differences between populations by exchanging alleles.

Question 18

Which of the following is an example of disruptive selection?

Accepted Answer

A population of birds where both very large and very small beaks are favored over medium-sized beaks.

Question 19

Which of the following is a correct application of the binomial nomenclature system?

Accepted Answer

Homo sapiens

Question 20

Which of the following statements about protists is TRUE?

Accepted Answer

Protists include organisms that are ancestral to plants, fungi, and animals.

Evolution, Diversity, and Classification of Life: Study Notes

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