Question 1

Which of the following best describes an emergent property in biological systems?

Accepted Answer

Cells are made of simple molecules, but when organized together, these molecules can perform living functions.

Question 2

A scientist observes that a sterilized broth becomes cloudy with cells after a few days. She hypothesizes that cells only appear in the broth if exposed to preexisting cells. Which of the following is the best classification for her statement?

Accepted Answer

Prediction

Question 3

Which of the following is NOT a characteristic of life?

Accepted Answer

Being composed of viruses.

Question 4

Which of the following is the correct order of the hierarchy of biological organization from smallest to largest?

Accepted Answer

Atom → Organelle → Cell → Tissue → Organ → Organ System → Organism → Population → Community → Ecosystem → Biosphere

Question 5

Which of the following best illustrates the concept of homeostasis?

Accepted Answer

Salt concentration in blood remains relatively steady, regardless of a person’s diet.

Question 6

Which of the following is required for natural selection to occur?

Accepted Answer

All of the above.

Question 7

A scientist wants to test the effect of temperature on the rate of bacterial reproduction. In this experiment, temperature is the:

Accepted Answer

Independent variable

Question 8

Which of the following kingdoms is NOT part of the Eukaryotic Domain?

Accepted Answer

Kingdom Eubacteria

Question 9

Which of the following best describes the role of a negative control in an experiment?

Accepted Answer

A group where no response is expected, preventing false positives.

Question 10

Which of the following is the best example of natural selection?

Accepted Answer

After several unusually cold winters, squirrels with an extra layer of fat have more offspring.

Question 11

Which of the following statements about the cell theory is FALSE?

Accepted Answer

All cells arise spontaneously.

Question 12

Which branch of biology is concerned with the naming and classifying of organisms?

Accepted Answer

Taxonomy

Question 13

Biologists can divide living organisms into two groups: autotrophs and heterotrophs, which differ in:

Accepted Answer

Their method of obtaining energy.

Question 14

A scientist observes a new phenomenon and wonders how it happens. What is the next step in their study according to the scientific method?

Accepted Answer

Hypothesize.

Question 15

Which of the following shows the best order of steps of the scientific method?

Accepted Answer

Observation → Hypothesis → Experiment → Data Analysis → Conclusion → Peer Review & Publish.

Question 16

Which of the following is the control group in an experiment where four groups of wheat plants receive 0, 20, 40, and 60 pounds of nitrogen per acre, respectively?

Accepted Answer

Group D (0 pounds)

Question 17

Which of the following is true regarding evolution by natural selection?

Accepted Answer

It does NOT explain how an ecosystem decays over time.

Question 18

Which of the following best describes the relationship between a hypothesis and a prediction in the scientific method?

Accepted Answer

A hypothesis is a testable explanation, and a prediction is an expected outcome based on the hypothesis.

Question 19

Which of the following is the most inclusive taxonomic category?

Accepted Answer

Domain

Question 20

Which of the following best describes the process of adaptation?

Accepted Answer

A process that enables organisms to improve survival and reproduction in their environments.

Introduction to Biology: Foundations, Organization, Evolution, and Scientific Method

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