Question 1

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

Accepted Answer

Lack of cellular structure

Question 2

A scientist observes that a certain species of fish only reproduces when water temperatures rise above 20°C. Which property of life does this best illustrate?

Accepted Answer

Response to stimuli

Question 3

Which of the following correctly represents the hierarchy of biological organization from smallest to largest?

Accepted Answer

Atom → Molecule → Organelle → Cell

Question 4

Which of the following statements about prokaryotic cells is TRUE?

Accepted Answer

Their DNA is found in the nucleoid region.

Question 5

A controlled experiment is designed to:

Accepted Answer

Compare an experimental group with a control group

Question 6

Which of the following best describes a theory in science?

Accepted Answer

A broad explanation supported by a large body of evidence

Question 7

Which of the following is an example of deductive reasoning?

Accepted Answer

Using a general principle to predict that a specific bird is white

Question 8

In a scientific experiment, the independent variable is:

Accepted Answer

The variable that is manipulated by the experimenter

Question 9

Which of the following best explains why enzymes are necessary for life?

Accepted Answer

They speed up chemical reactions that would otherwise occur too slowly to sustain life

Question 10

A protein's function is most directly determined by:

Accepted Answer

The sequence and 3D shape of its amino acids

Question 11

Which of the following is an emergent property of proteins that allows them to act as enzymes?

Accepted Answer

Their unique 3D structure with an active site

Question 12

Which of the following is the correct order of taxonomic classification from most inclusive to least inclusive?

Accepted Answer

Domain → Kingdom → Phylum → Class → Order → Family

Question 13

Which domain includes organisms with cells that have a nucleus?

Accepted Answer

Eukarya

Question 14

A student is analyzing a bar graph showing the average height of plants grown under different light conditions. What does each bar represent?

Accepted Answer

The mean value of the dependent variable for each group

Question 15

Which of the following best describes the relationship between a hypothesis and a theory?

Accepted Answer

A theory is a broad explanation supported by evidence, while a hypothesis is a testable prediction.

Question 16

Which of the following is an example of an abiotic factor in an ecosystem?

Accepted Answer

Water in a pond

Question 17

If a mutation causes a change in the active site of an enzyme, what is the most likely consequence?

Accepted Answer

The enzyme may no longer bind its substrate effectively

Question 18

Which of the following best illustrates the concept of homeostasis?

Accepted Answer

A human sweating to cool down when overheated

Question 19

Which of the following is TRUE about the scientific method?

Accepted Answer

A hypothesis must be testable and falsifiable

Question 20

Which of the following best describes the role of ribosomes in a cell?

Accepted Answer

They synthesize proteins

General Biology: Foundations, Cells, Scientific Method, and Proteins

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