Question 1

Which of the following is NOT considered a characteristic of life?

Accepted Answer

The ability to form crystals from dissolved minerals.

Question 2

A scientist observes that a certain organism can reproduce both sexually and asexually. Which characteristic of life does this best illustrate?

Accepted Answer

Reproduction

Question 3

Salt concentration in human blood remains relatively steady, regardless of a person’s diet. This best illustrates which characteristic of life?

Accepted Answer

Homeostasis

Question 4

Which of the following best describes the hierarchical organization of life?

Accepted Answer

Cells combine to form tissues, which form organs, which form organ systems.

Question 5

Which of the following is an example of an organism responding to environmental stimuli?

Accepted Answer

A plant bending toward sunlight.

Question 6

Which of the following statements about viruses is correct based on the characteristics of life?

Accepted Answer

Viruses are not considered alive because they cannot reproduce independently.

Question 7

Which process best illustrates the concept of metabolism in living organisms?

Accepted Answer

The breakdown of glucose to release energy.

Question 8

Which of the following is a direct result of evolutionary changes in DNA over time?

Accepted Answer

Adaptation to new environments.

Question 9

Which of the following best describes why homeostasis is critical for survival?

Accepted Answer

It allows organisms to maintain stable internal conditions despite external changes.

Question 10

Which of the following scenarios best demonstrates the acquisition and utilization of energy by living organisms?

Accepted Answer

A human eating food to fuel cellular processes.

Question 11

Which of the following is NOT a requirement for something to be considered alive?

Accepted Answer

Ability to form crystals.

Question 12

Which of the following best explains why DNA is considered the universal genetic material?

Accepted Answer

All living organisms use DNA to store and transmit hereditary information.

Question 13

A scientist discovers a new entity that can reproduce, evolve, and respond to stimuli, but cannot maintain homeostasis. According to the characteristics of life, is this entity considered alive?

Accepted Answer

No, because maintaining homeostasis is essential for life.

Question 14

Which of the following best illustrates the hierarchical organization of living systems?

Accepted Answer

Atoms → Molecules → Cells → Tissues → Organs → Organ Systems → Organism

Question 15

Which of the following is an example of evolution in a population?

Accepted Answer

A population of bacteria developing resistance to antibiotics over several generations.

Characteristics of Life: Foundations of Biology

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