$$\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2 \rightarrow 6\text{CO}_2 + 6\text{H}_2\text{O} + \text{energy}$$

Question 1

Which of the following best describes the role of cyanobacteria in Earth's history, as shown in Figure 1.2?

Accepted Answer

They are responsible for the formation of stromatolites and contributed to the oxygenation of Earth's atmosphere.

Question 2

Which of the following is a correct sequence of the scientific method, as illustrated in Figure 1.6?

Accepted Answer

Make an observation → Ask a question → Form a hypothesis → Make a prediction → Do an experiment → Analyze the results → Report results

Question 3

Which reasoning type is used when scientists generalize from specific observations to broader theories, as described in Figure 1.7?

Accepted Answer

Inductive reasoning

Question 4

A forensic scientist is extracting DNA from a sample. Which biological level of organization is directly involved in this process?

Accepted Answer

Molecule

Question 5

Which domain includes organisms that lack intracellular organelles, as shown in Figure 1.17?

Accepted Answer

Bacteria and Archaea

Question 6

Which of the following is an example of applied science, as illustrated by the rehabilitation of baby squirrels after Hurricane Irma?

Accepted Answer

Using scientific knowledge to solve practical problems

Question 7

Which characteristic of life is demonstrated by the sensitive plant (Mimosa pudica) instantly drooping and folding its leaves when touched?

Accepted Answer

Response to stimuli

Question 8

Which of the following best explains why polar bears have thick fur and a dense layer of fat under their skin?

Accepted Answer

To maintain homeostasis by reducing heat loss in cold environments

Question 9

The Human Genome Project is an example of which type of scientific endeavor?

Accepted Answer

A collaborative effort in basic science to sequence the entire human genome

Question 10

Which of the following is the correct order of biological levels of organization from smallest to largest, as shown in Figure 1.16?

Accepted Answer

Organelle → Cell → Tissue → Organ → Organism → Ecosystem → Biosphere

Question 11

Which of the following equations best represents the process of cellular respiration, which powers flight in the California condor?

Accepted Answer

$$	ext{C}_6	ext{H}_{12}	ext{O}_6 + 6	ext{O}_2 ightarrow 6	ext{CO}_2 + 6	ext{H}_2	ext{O} + 	ext{energy}$$

Question 12

Which of the following is a plausible hypothesis for an experiment investigating the effect of light on plant growth?

Accepted Answer

If plants are exposed to more light, then they will grow taller.

Question 13

Which of the following is a key difference between prokaryotic and eukaryotic cells?

Accepted Answer

Prokaryotic cells lack membrane-bound organelles, while eukaryotic cells have them.

Question 14

Which of the following best describes the function of E. coli bacteria in the human digestive tract?

Accepted Answer

Aid in the absorption of vitamin K and other nutrients

Question 15

Which of the following is an example of deductive reasoning in scientific research?

Accepted Answer

Starting with a general principle and applying it to a specific case

Question 16

Which of the following is NOT a characteristic shared by all living organisms?

Accepted Answer

Ability to photosynthesize

Question 17

Which of the following best explains why kittens inherit genes from both parents but do not look exactly alike?

Accepted Answer

Genetic variation due to sexual reproduction

Question 18

Which of the following is a real-world application of the scientific method in medicine?

Accepted Answer

Testing the effectiveness of a new drug through controlled experiments

Question 19

Which of the following best describes the collaborative nature of the Human Genome Project?

Accepted Answer

Researchers from multiple scientific fields worked together to sequence the human genome

Chapter 1: The Study of Life – Foundations of Biology

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