Question 1

Which of the following best describes the main difference between the three domains of life?

Accepted Answer

Domain Bacteria and Domain Archaea both consist of prokaryotic organisms, but Archaea are more closely related to Eukarya than to Bacteria.

Question 2

Which of the following is the lowest level of biological organization that exhibits all the properties of life?

Accepted Answer

Cell

Question 3

A scientist observes that plants grow faster when exposed to blue light compared to red light. She proposes that blue light increases the rate of photosynthesis. Which of the following is her hypothesis?

Accepted Answer

Blue light increases the rate of photosynthesis in plants.

Question 4

Which of the following best illustrates the relationship between structure and function in biology?

Accepted Answer

The thin, flat shape of a leaf maximizes surface area for absorbing sunlight.

Question 5

Which of the following is an example of a producer in an ecosystem?

Accepted Answer

Oak tree

Question 6

In a controlled experiment, which variable is deliberately changed to test its effect?

Accepted Answer

Independent variable

Question 7

Which of the following best describes the difference between quantitative and qualitative data?

Accepted Answer

Quantitative data are numerical measurements, while qualitative data are descriptive observations.

Question 8

Which of the following is NOT a step in the scientific method?

Accepted Answer

Ignoring data that does not fit the hypothesis

Question 9

Which of the following best describes the process of artificial selection?

Accepted Answer

Humans breed plants or animals for specific traits.

Question 10

Which of the following statements about DNA is correct?

Accepted Answer

DNA stores genetic information that guides the development and functioning of all living organisms.

Question 11

Which of the following best describes the flow of energy in an ecosystem?

Accepted Answer

Energy flows one-way from the sun to producers to consumers and is eventually lost as heat.

Question 12

Which of the following is a correct example of the hierarchy of structural levels in the human body?

Accepted Answer

Cells $$ \rightarrow $$ Tissues $$ \rightarrow $$ Organs $$ \rightarrow $$ Organ systems $$ \rightarrow $$ Organism

Question 13

Which of the following is an example of a decomposer?

Accepted Answer

Mushroom

Question 14

Which of the following best describes the concept of 'cycling of matter' in an ecosystem?

Accepted Answer

Matter is recycled between living and nonliving parts of the ecosystem.

Question 15

Which of the following is a correct definition of a scientific theory?

Accepted Answer

A broad explanation supported by a large body of evidence.

Question 16

Which of the following is an example of a controlled experiment?

Accepted Answer

Testing the effect of fertilizer on plant growth by giving one group fertilizer and another group none, while keeping all other conditions the same.

Question 17

Which of the following best describes the main goal of science?

Accepted Answer

To understand natural phenomena.

Question 18

Which of the following is a correct example of a consumer?

Accepted Answer

Wolf

Question 19

Which of the following best describes systems biology?

Accepted Answer

The study of complex interactions within biological systems.

Question 20

Charles Darwin's book, 'On the Origin of Species,' made two main points. Which of the following correctly identifies them?

Accepted Answer

Species evolve over time, and natural selection is the mechanism for evolution.

Bio 101 Chapter 1 Study Guide – Step-by-Step Guidance for General Biology

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