Question 1

Which of the following best explains why the structure of DNA allows it to store genetic information?

Accepted Answer

The double helix structure of DNA, with complementary base pairing, enables the precise storage and copying of genetic information.

Question 2

Which of the following is NOT a unifying theme of biology?

Accepted Answer

Gravity

Question 3

A scientist is studying the effect of a new fertilizer on plant growth. She sets up two groups: one with the fertilizer and one without. Which aspect of scientific inquiry is she demonstrating?

Accepted Answer

Formulating a hypothesis and conducting a controlled experiment

Question 4

Which of the following best describes the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells contain membrane-bound organelles, while prokaryotic cells do not.

Question 5

Which of the following is an example of negative feedback in biological systems?

Accepted Answer

The pancreas secreting insulin to lower blood glucose levels when they rise

Question 6

Which of the following best illustrates the concept of 'descent with modification' as proposed by Charles Darwin?

Accepted Answer

Finch species on the Galápagos Islands have different beak shapes adapted to their specific diets, but share a common ancestor.

Question 7

Which of the following is a correct sequence in the hierarchy of biological organization from smallest to largest?

Accepted Answer

Organelle → Cell → Tissue → Organ → Organism

Question 8

Which domain includes organisms that are prokaryotic and often live in extreme environments?

Accepted Answer

Archaea

Question 9

A hummingbird uses energy from nectar to power its flight. According to the laws of thermodynamics, what happens to some of this energy?

Accepted Answer

Some energy is lost as heat to the environment.

Question 10

Which of the following best describes the process of gene expression?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 11

Which of the following is a characteristic shared by all cells?

Accepted Answer

Enclosure by a membrane that regulates passage of materials

Question 12

Which of the following best explains why evolutionary relationships are often depicted as treelike diagrams?

Accepted Answer

They illustrate how ancestral species can give rise to multiple descendant species.

Question 13

Which of the following is an example of positive feedback?

Accepted Answer

The release of oxytocin increases the intensity of uterine contractions during childbirth.

Question 14

Which of the following kingdoms is NOT part of the domain Eukarya?

Accepted Answer

Bacteria

Question 15

A population of mice lives on a sandy beach. Over time, the frequency of light-colored fur increases because these mice are less visible to predators. This is an example of:

Accepted Answer

Natural selection

Question 16

Which of the following statements about chemical cycling and energy flow in ecosystems is correct?

Accepted Answer

Energy flows through an ecosystem and is eventually lost as heat, while chemicals are recycled.

Question 17

Which of the following best describes the dilemma of reductionism in biology?

Accepted Answer

Reductionism ignores the importance of complex systems and emergent properties.

Question 18

Which of the following is a direct result of the process of evolution by natural selection?

Accepted Answer

Populations become better adapted to their environments over generations.

Question 19

Which of the following research developments has advanced systems biology?

Accepted Answer

High-throughput technology, bioinformatics, and interdisciplinary research teams

Question 20

Which of the following best explains the phrase 'life’s dual nature of unity and diversity'?

Accepted Answer

Living things share common features due to descent from a common ancestor, but also show diversity due to adaptation and evolution.

Chapter 1: Evolution, the Themes of Biology, and Scientific Inquiry – Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards