Question 1

Which of the following best describes the hypothesis tested by Dr. Belyayev in the silver fox domestication experiment?

Accepted Answer

Domestication is the result of changes in the frequency of genes that influence behavior.

Question 2

Which of the following is NOT a characteristic of living organisms according to the course materials?

Accepted Answer

Living organisms do not regulate their internal environment.

Question 3

What is the main difference between artificial selection and natural selection?

Accepted Answer

Artificial selection is driven by human choice, while natural selection is driven by environmental pressures.

Question 4

In the context of the silver fox experiment, what would be a valid prediction if domestication is due to changes in gene frequency?

Accepted Answer

Behavioral traits associated with tameness will become more common over generations.

Question 5

Which of the following statements about the scientific method is correct?

Accepted Answer

A proper hypothesis must be testable and falsifiable.

Question 6

Which equation best represents the change in gene frequency due to selection in a population?

Accepted Answer

$$\Delta p = sp(1-p)$$

Question 7

Why are vestigial traits considered evidence for evolution?

Accepted Answer

They show that ancestral traits can be diminished and lose their original function over time.

Question 8

Which of the following is a real-world example of artificial selection?

Accepted Answer

Breeding dogs for specific traits such as tameness or coat color.

Question 9

What is the significance of the 'Tree of Life' in biology?

Accepted Answer

It represents the complete, 4-billion-year history of life and the relationships among all living organisms.

Question 10

Which of the following best explains why not all offspring survive and reproduce, according to Darwin's theory?

Accepted Answer

Competition for limited resources prevents unlimited population growth.

Question 11

Which of the following is a transitional feature that provides evidence for evolutionary change?

Accepted Answer

Traits in fossil species that are intermediate between ancestral and derived species.

Question 12

What is the primary reason why the domestication of dogs is thought to have occurred faster than other animals?

Accepted Answer

Less fearful wolves could scavenge around humans and had more access to food, leading to more offspring.

Question 13

Which of the following is NOT a requirement for a hypothesis to be considered scientific?

Accepted Answer

It must be proven correct before testing.

Question 14

Which of the following best describes the process of evolution by natural selection?

Accepted Answer

Traits that increase survival and reproduction become more common in the population over generations.

Question 15

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

Accepted Answer

The coccyx (tailbone)

Question 16

Which of the following statements about gene frequency and evolution is correct?

Accepted Answer

Evolution results from changes in gene frequencies in populations over time.

Question 17

Which of the following is a direct application of the scientific method in biology?

Accepted Answer

Formulating and interpreting testable questions that result in qualitative and quantitative data.

Question 18

Which of the following best explains why the fossil record is incomplete?

Accepted Answer

Fossilization is a rare, chance event and not all organisms are preserved.

Question 19

Which of the following is a unifying principle of biology?

Accepted Answer

Evolution explains the diversity and relatedness of all living organisms.

Question 20

Which of the following is a real-world consequence of strong selection in a population?

Accepted Answer

Rapid changes in gene frequencies and observable traits over a few generations.

Introduction to Evolution, Natural Selection, and the Scientific Foundations of Biology

Study Guide - Practice Questions