Question 1

Which of the following is NOT one of the four main approaches used to provide evidence for evolution?

Accepted Answer

Genetic drift in isolated populations

Question 2

A population of brown mice is all homozygous for brown fur, which helps them avoid predators in a brown environment. If climate change causes the environment to turn green, what is the most likely outcome for this population?

Accepted Answer

The population may decline due to increased predation, unless a mutation for green fur arises.

Question 3

Which structure is considered a vestigial structure in humans?

Accepted Answer

The appendix

Question 4

Which of the following best describes homologous structures?

Accepted Answer

Structures that share a common ancestry but may have different functions

Question 5

The wings of a bird and the wings of a dragonfly are examples of:

Accepted Answer

Analogous structures

Question 6

Which of the following statements about natural selection is TRUE?

Accepted Answer

Natural selection edits existing traits based on environmental pressures.

Question 7

Which gene is a pseudogene in primates, resulting in their dependence on dietary sources for Vitamin C?

Accepted Answer

GULO

Question 8

What is the significance of the presence of pseudogenes in the genome of different species?

Accepted Answer

They provide evidence of shared ancestry and evolutionary history.

Question 9

Which of the following is an example of convergent evolution?

Accepted Answer

The development of similar gliding adaptations in sugar gliders (Australia) and flying squirrels (North America)

Question 10

Which of the following best explains why islands often have many endemic species?

Accepted Answer

Isolation leads to unique evolutionary paths and adaptation.

Question 11

Which fossil evidence supports the evolutionary relationship between cetaceans (whales, dolphins) and even-toed ungulates?

Accepted Answer

The presence of the talus (ankle bone) in both groups

Question 12

Which of the following is a correct application of biogeography in understanding evolution?

Accepted Answer

Studying the distribution of species to infer evolutionary relationships and migration patterns

Question 13

Which of the following is an example of a trait in humans that is homologous to a trait in lizards?

Accepted Answer

The presence of a backbone

Question 14

Which of the following is an example of a trait in humans that is analogous to a trait in an octopus?

Accepted Answer

The ability to grasp objects with hands and tentacles

Question 15

A researcher observes that a population of bacteria develops resistance to an antibiotic over several generations. Which type of evidence for evolution does this represent?

Accepted Answer

Direct observation of evolutionary change

Question 16

Which of the following statements about pseudogenes is correct?

Accepted Answer

Pseudogenes are nonfunctional DNA segments that resemble functional genes.

Question 17

Which equation best represents the Hardy-Weinberg equilibrium for allele frequencies in a population?

Accepted Answer

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

Question 18

If a population of insects develops longer beaks to feed on a new type of flower, which evolutionary mechanism is most likely responsible for this change?

Accepted Answer

Natural selection

Question 19

Which of the following is a correct statement about the fossil record?

Accepted Answer

It provides evidence for the origin and extinction of species over time.

Question 20

Which of the following best explains why a trait that is advantageous in one habitat may not be advantageous in another?

Accepted Answer

Environmental conditions determine which traits are selected for or against.

Evidence of Evolution: Proof and Approaches

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