Question 1

Which of the following best describes the concept of homeostasis in living organisms?

Accepted Answer

The maintenance of a relatively constant internal environment.

Question 2

According to NASA's definition, which of the following is required for something to be considered 'alive'?

Accepted Answer

A self-sustaining chemical system capable of Darwinian evolution.

Question 3

Which domain includes organisms that are unicellular and lack a true nucleus?

Accepted Answer

Domain Bacteria

Question 4

A scientist observes that all known organisms are composed of cells. She hypothesizes that a newly discovered organism will also be made of cells. Which type of reasoning is she using?

Accepted Answer

Deductive reasoning

Question 5

Which of the following is NOT a characteristic of living organisms?

Accepted Answer

Ability to photosynthesize

Question 6

Which kingdom contains organisms that are eukaryotic, multicellular, and capable of photosynthesis?

Accepted Answer

Kingdom Plantae

Question 7

In the binomial nomenclature system, which of the following is the correct way to write the scientific name for humans?

Accepted Answer

$$Homo sapiens$$

Question 8

Which of the following best illustrates the process of natural selection?

Accepted Answer

Individuals better adapted to their environment tend to produce more offspring.

Question 9

A researcher wants to test the hypothesis that a new drug lowers blood pressure. She divides subjects into two groups: one receives the drug, the other receives a placebo. What is the purpose of the placebo group?

Accepted Answer

To serve as a control for comparison.

Question 10

Which of the following is the most inclusive category in biological classification?

Accepted Answer

Domain

Question 11

Which statement about scientific theories is correct?

Accepted Answer

A theory is supported by a broad range of observations, experiments, and data.

Question 12

Which of the following best describes the difference between growth and development in living organisms?

Accepted Answer

Growth refers to increase in size or number of cells; development refers to changes from conception to death.

Question 13

Which domain contains organisms that often live in extreme environments, such as high salinity or temperature?

Accepted Answer

Domain Archaea

Question 14

A scientist collects data from an experiment and displays it in a graph. Why is statistical analysis important in this context?

Accepted Answer

To rule out that results were due to chance.

Question 15

Which of the following is an example of an organism responding to a stimulus?

Accepted Answer

A human sweating when it is hot.

Question 16

Which of the following statements about viruses is supported by the study materials?

Accepted Answer

Viruses challenge the definition of life because they do not meet all characteristics of living organisms.

Question 17

Which of the following is an example of a hypothesis?

Accepted Answer

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

Question 18

Which of the following best describes the role of systematics in biology?

Accepted Answer

It is the discipline of identifying and classifying organisms based on evolutionary relationships.

Question 19

Which of the following is a correct application of deductive reasoning in the scientific method?

Accepted Answer

Using general premises to make specific predictions.

Question 20

Which of the following is the correct order of classification categories from most inclusive to least inclusive?

Accepted Answer

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

Introduction to Biology: Characteristics and Classification of Living Organisms

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