Question 1

Which of the following is NOT one of the five fundamental characteristics shared by all living organisms?

Accepted Answer

They are all capable of photosynthesis.

Question 2

Which statement best describes the difference between a scientific theory and the everyday use of the word 'theory'?

Accepted Answer

A scientific theory is an explanation supported by a wide body of evidence.

Question 3

Which experiment provided strong evidence against the idea of spontaneous generation?

Accepted Answer

Louis Pasteur’s swan-neck flask experiment

Question 4

According to the cell theory, which statement is correct?

Accepted Answer

All organisms are made up of cells, and all cells come from preexisting cells.

Question 5

Which of the following best describes the central dogma of molecular biology?

Accepted Answer

$$DNA \rightarrow RNA \rightarrow Protein$$

Question 6

A mutation occurs in the DNA of a cell. Which of the following is a possible consequence?

Accepted Answer

The mutation may lead to a change in the protein produced, resulting in heritable variation.

Question 7

Which of the following is NOT a requirement for natural selection to occur?

Accepted Answer

All individuals must have identical traits.

Question 8

In the Galápagos finch example, what was the adaptation that increased fitness during periods of abundant small, soft seeds?

Accepted Answer

Small, pointed beaks

Question 9

Which of the following best defines 'fitness' in a biological context?

Accepted Answer

The ability to produce more surviving offspring than others in the population

Question 10

Which of the following statements about phylogenetic trees is TRUE?

Accepted Answer

Branches that share a recent common ancestor represent closely related species.

Question 11

Which of the following is a correct interpretation of the chromosome theory of inheritance?

Accepted Answer

Genes are located on chromosomes and are the units of hereditary information.

Question 12

Which of the following is a real-world application of analyzing genetic variation?

Accepted Answer

Determining evolutionary relationships by comparing DNA sequences between species

Question 13

Which of the following is a distinguishing feature of eukaryotic cells compared to prokaryotic cells?

Accepted Answer

Presence of a nucleus

Question 14

Which of the following best describes the process of speciation?

Accepted Answer

When populations diverge to form new species

Question 15

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

Accepted Answer

A plant turning its leaves toward sunlight

Question 16

Which of the following is a requirement for an organism to be considered alive, according to the five fundamental characteristics?

Accepted Answer

Ability to process hereditary information

Question 17

Which of the following best explains why DNA sequence changes can lead to evolutionary change?

Accepted Answer

They can result in heritable variations that may increase fitness.

Question 18

Which of the following is a correct statement about the acquisition of energy in living organisms?

Accepted Answer

Organisms acquire chemical energy in the form of adenosine triphosphate (ATP).

Question 19

Which of the following is a direct result of natural selection acting on individuals?

Accepted Answer

Evolutionary change in populations

Question 20

Which of the following best describes the relationship between green algae and land plants based on DNA sequence comparison?

Accepted Answer

Green algae are more closely related to land plants than brown algae are.

Chapter 1: Biology – The Study of Life

Study Guide - Practice Questions