Question 1

Which of the following correctly lists the levels of biological organization from largest to smallest?

Accepted Answer

Biosphere, Ecosystems, Communities, Populations, Organisms, Organs, Tissues, Cells, Organelles, Molecules

Question 2

Which statement best describes the process of evolution as outlined in the study materials?

Accepted Answer

Evolution is the process by which species accumulate differences from their ancestors as they adapt to different environments over time.

Question 3

Which of the following is a correct application of the Central Dogma of molecular biology?

Accepted Answer

DNA $$\rightarrow$$ RNA $$\rightarrow$$ Protein

Question 4

A scientist is studying the effect of sunlight on plant growth. She sets up two groups: one receives sunlight, the other does not. What is the independent variable in this experiment?

Accepted Answer

Amount of sunlight

Question 5

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

Accepted Answer

All organisms use DNA composed of the same four nucleotide bases: A, T, C, and G.

Question 6

Which of the following is an example of a mutually beneficial interaction between organisms?

Accepted Answer

Fish eating small parasites off turtles

Question 7

Which domain includes organisms with membrane-bound organelles and a nucleus?

Accepted Answer

Eukarya

Question 8

A population of mice lives in a sandy environment. According to the hypothesis tested in the study materials, what would you predict about the survival of mice with dark fur compared to those with light fur?

Accepted Answer

Mice with light fur will have higher survival rates due to better camouflage.

Question 9

Which of the following best describes a scientific theory?

Accepted Answer

A broad explanation supported by a large body of evidence that can generate new hypotheses.

Question 10

Which of the following is NOT a unifying theme of biology as described in the study materials?

Accepted Answer

Gravity

Question 11

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

Accepted Answer

Eukaryotic cells contain membrane-bound organelles, while prokaryotic cells do not.

Question 12

Which of the following best describes the role of producers in an ecosystem?

Accepted Answer

They convert energy from sunlight into chemical energy through photosynthesis.

Question 13

A researcher observes that camouflaged mice suffer less predation than non-camouflaged mice. Which type of reasoning is used to draw a general conclusion from these observations?

Accepted Answer

Inductive reasoning

Question 14

Which of the following is an example of a population?

Accepted Answer

All individuals of a single species of flower in a meadow

Question 15

Which of the following best describes the dependent variable in a controlled experiment?

Accepted Answer

The factor that is measured in response to changes in the independent variable

Question 16

Which of the following is a correct statement about the flow of energy in an ecosystem?

Accepted Answer

Energy enters as light and exits as heat

Question 17

Which of the following is a function of genes as described in the study materials?

Accepted Answer

They are units of inheritance that transmit information from parents to offspring.

Question 18

Which of the following is an example of reductionism in biology?

Accepted Answer

Studying the function of a single enzyme to understand metabolism

Question 19

Which of the following is a reason why scientific theories are considered more robust than hypotheses?

Accepted Answer

They are supported by a large body of evidence and can generate new testable hypotheses.

Question 20

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

Accepted Answer

The process of converting information from a gene to its cellular product

Chapter 1: Evolution and the Foundations of Biology – Study Notes

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