Question 1

Which of the following is NOT one of the five fundamental characteristics of life as described in the study materials?

Accepted Answer

All organisms must be multicellular.

Question 2

According to the cell theory, what is the origin of all cells?

Accepted Answer

All cells arise from preexisting cells.

Question 3

Which experiment provided evidence against the hypothesis of spontaneous generation?

Accepted Answer

Louis Pasteur’s swan-neck flask experiment.

Question 4

A scientist proposes that giraffes have long necks to reach food high in trees. Which type of scientific statement is this?

Accepted Answer

Hypothesis

Question 5

Which of the following best describes a scientific theory?

Accepted Answer

An explanation for broad patterns in nature.

Question 6

In the context of natural selection, which requirement must be met for evolution to occur?

Accepted Answer

Both A and B must be met.

Question 7

Which of the following is a critical component of good experimental design?

Accepted Answer

Including a control group.

Question 8

Which statement about natural selection is correct?

Accepted Answer

Natural selection acts on individuals, but evolutionary change occurs in populations.

Question 9

A population of humans has a gene for lactase production. Over thousands of years, the frequency of this gene increases. What process is responsible for this change?

Accepted Answer

Natural selection

Question 10

Which of the following is an example of a prediction in scientific methodology?

Accepted Answer

If giraffes feed high in trees, then longer necks should be more common.

Question 11

Which equation best represents the frequency change of a beneficial allele in a population over time?

Accepted Answer

$$\Delta p = s \cdot p \cdot (1 - p)$$

Question 12

Which of the following is NOT a requirement for a hypothesis to be scientifically valid?

Accepted Answer

It must be based on broad patterns.

Question 13

In Pasteur’s experiment, why was the swan-neck flask important?

Accepted Answer

It allowed air in but prevented entry of microorganisms.

Question 14

Which of the following best illustrates the concept of descent with modification?

Accepted Answer

A population of birds develops different beak shapes over generations.

Question 15

Which real-world example demonstrates natural selection in action?

Accepted Answer

The spread of SARS-CoV-2 variants such as B.1.1.7 and B.1.617.2.

Question 16

Which of the following is a plausible misconception about the cell theory?

Accepted Answer

Cells can arise spontaneously from non-living matter.

Question 17

A scientist wants to test whether a new drug affects cell replication. Which step should they take first according to the scientific method?

Accepted Answer

Formulate a hypothesis.

Question 18

Which of the following statements about evolution is correct?

Accepted Answer

Evolution is a change in population characteristics over time.

Question 19

Which of the following is an example of information processing in living organisms?

Accepted Answer

A cell responds to a hormone signal by activating a gene.

Question 20

Which of the following best describes the relationship between all cells and organisms according to the cell theory?

Accepted Answer

All cells and organisms are related by a common ancestry.

Study guide 1

Study Guide - Practice Questions

Study Guide - Flashcards