Question 1

Which of the following best describes the concept of punctuated equilibrium in evolutionary biology?

Accepted Answer

Long periods of stasis are interrupted by brief periods of rapid evolutionary change.

Question 2

Which scientist is known as the 'father of paleontology' and argued for catastrophism based on fossil evidence?

Accepted Answer

Georges Cuvier

Question 3

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

Accepted Answer

The flipper of a whale and the arm of a human

Question 4

Which process is most likely to result in adaptive radiation?

Accepted Answer

A mass extinction event followed by the availability of new ecological niches

Question 5

Given the Hardy-Weinberg equation $$p^2 + 2pq$$ + $$q^2 = 1$, if the frequency of the dominant allele (p$) is 0.7, what is the expected frequency of heterozygotes in the population?

Accepted Answer

$$2pq = 2(0.7)(0.3) = 0.42$$

Question 6

Which of the following best describes allopatric speciation?

Accepted Answer

Speciation occurs in populations that are geographically isolated from each other.

Question 7

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

Accepted Answer

Natural selection favoring certain alleles

Question 8

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

Accepted Answer

Mating occurs at different times of the year

Question 9

A population of beetles has two alleles for shell color: G (green) and g (brown). If the frequency of the g allele ($$q) is 0.4$$, what is the expected frequency of homozygous brown beetles ($$q^2) $$under Hardy-Weinberg equilibrium?

Accepted Answer

$$q^2$$ = $$(0.4)^2 = 0.16$

Question 10

Which of the following best explains why rapid burial is essential for fossilization?

Accepted Answer

It prevents the organism from being eaten by scavengers and slows bacterial decay.

Question 11

Which of the following is an example of convergent evolution?

Accepted Answer

The similar streamlined body shapes of dolphins (mammals) and sharks (fish)

Question 12

Which of the following is a postzygotic barrier to reproduction?

Accepted Answer

Hybrid sterility

Question 13

Which of the following best describes the biological species concept?

Accepted Answer

A group of organisms that can interbreed and produce viable, fertile offspring

Question 14

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

Accepted Answer

The appendix

Question 15

Which of the following is the correct order of taxonomic categories from most inclusive to least inclusive?

Accepted Answer

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

Question 16

Which of the following scenarios best illustrates genetic drift?

Accepted Answer

A small population of birds is isolated on an island, and by chance, only a few individuals reproduce, changing allele frequencies.

Question 17

Which of the following is a correct statement about the founder effect?

Accepted Answer

It results from a small group of individuals colonizing a new area, leading to reduced genetic diversity.

Question 18

Which of the following is an example of a monophyletic group?

Accepted Answer

A group that includes an ancestral species and all of its descendants

Question 19

Which of the following best describes paedomorphosis?

Accepted Answer

The retention of juvenile features in the adult form

Question 20

Which of the following is a real-world example of adaptive radiation?

Accepted Answer

The diversification of Darwin's finches on the Galápagos Islands

Evolution, Speciation, and Phylogeny: Core Concepts in General Biology

Study Guide - Practice Questions

Study Guide - Flashcards