Question 1

Which of the following best illustrates the concept of emergent properties in biology?

Accepted Answer

A functioning heart that can pump blood only when all its tissues and cells work together.

Question 2

Which of the following statements about prokaryotic and eukaryotic cells is correct?

Accepted Answer

Prokaryotic cells are generally smaller and lack a nucleus, while eukaryotic cells have a nucleus and membrane-bound organelles.

Question 3

Which of the following is the correct sequence of genetic material from smallest to largest?

Accepted Answer

Nucleotide, gene, chromosome, genome

Question 4

A scientist observes that a certain plant grows faster in sunlight than in shade. She hypothesizes that light increases the rate of photosynthesis. Which of the following is the next logical step in the scientific method?

Accepted Answer

Design and conduct an experiment to test the effect of light on photosynthesis.

Question 5

Which of the following best describes the process of gene expression?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 6

Which of the following is NOT a property shared by all living things?

Accepted Answer

Possession of a cell wall

Question 7

Which domain includes organisms that are most numerous and diverse, mostly single-celled, and classified into several groups?

Accepted Answer

Domain Eukarya (specifically, protists)

Question 8

Charles Darwin’s theory of natural selection is best supported by which of the following observations?

Accepted Answer

Individuals with traits best suited to their environment are more likely to survive and reproduce.

Question 9

Which of the following best explains why the genetic code is considered evidence for common ancestry among organisms?

Accepted Answer

The near-universality of the genetic code suggests that all life shares a common origin.

Question 10

A controlled experiment is designed to test the effect of a new fertilizer on plant growth. Which of the following is the independent variable?

Accepted Answer

The amount of fertilizer applied to the plants

Question 11

Which of the following is an example of deductive reasoning in biology?

Accepted Answer

If all cells come from pre-existing cells, then a new cell observed under the microscope must have arisen from another cell.

Question 12

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

Accepted Answer

Structure determines function, as seen in the way the shape of a protein enables its specific activity.

Question 13

Which of the following is the correct order of taxonomic classification from broadest to most specific?

Accepted Answer

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

Question 14

Which of the following statements about scientific theories is correct?

Accepted Answer

Theories are broad explanations supported by a large body of evidence and can generate new hypotheses.

Question 15

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

Accepted Answer

Qualitative data is descriptive, while quantitative data is numerical.

Question 16

A researcher is studying the effect of temperature on enzyme activity. She keeps all variables constant except for temperature, which she changes in each trial. What is the dependent variable in this experiment?

Accepted Answer

The rate of enzyme activity measured

Question 17

Which of the following is an example of an emergent property at the ecosystem level?

Accepted Answer

The cycling of nutrients and flow of energy among organisms and their environment

Question 18

Which of the following best explains why a hypothesis must be testable?

Accepted Answer

So that it can be evaluated by experiments and observations

Question 19

Which of the following is a correct example of inductive reasoning in biology?

Accepted Answer

Observing that all observed plants in a region have green leaves and concluding that all plants in that region are green.

Question 20

Which of the following best describes the process of evolution by natural selection?

Accepted Answer

Populations evolve as individuals with advantageous traits reproduce more successfully, increasing those traits in the population over generations.

Themes of Biology and Scientific Inquiry: Study Notes

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