Question 1

Which of the following is NOT one of the eight key characteristics of life?

Accepted Answer

Photosynthesis

Question 2

A scientist observes that a plant bends toward a light source. Which property of life does this best illustrate?

Accepted Answer

Sensitivity or response to stimuli

Question 3

Which level of biological organization is defined as a collection of similar cells carrying out the same function?

Accepted Answer

Tissue

Question 4

Which of the following statements about atoms is TRUE?

Accepted Answer

An atom's mass number is the sum of the number of protons and neutrons in its nucleus: $$	ext{Mass number} = 	ext{protons} + 	ext{neutrons}$$

Question 5

Which type of chemical bond is the strongest and involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Question 6

Why does water have a high resistance to temperature change compared to most other substances?

Accepted Answer

Because of hydrogen bonding between water molecules

Question 7

Which of the following best describes a solution in biological terms?

Accepted Answer

A homogeneous mixture where the dissolving agent is the solvent and the dissolved substance is the solute

Question 8

Which of the following is an example of homeostasis in humans?

Accepted Answer

The body regulating its temperature through sweating

Question 9

A radioactive isotope of carbon ($$^{14}C) $$decays over time. What property of the isotope allows it to be used in dating ancient biological materials?

Accepted Answer

It undergoes spontaneous radioactive decay

Question 10

Which of the following statements about scientific inquiry is CORRECT?

Accepted Answer

It involves asking questions, making observations, and doing experiments to answer those questions

Question 11

Which of the following is a trace element essential for life, required only in very small amounts?

Accepted Answer

Iron

Question 12

Which property of water allows trees to transport water from their roots to their leaves?

Accepted Answer

Cohesion

Question 13

Which of the following best describes the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have a nucleus and membrane-bound organelles

Question 14

Which scientist first proposed organizing the known species of organisms into a hierarchical taxonomy?

Accepted Answer

Carl Linnaeus

Question 15

Which of the following is the correct order of biological hierarchy from highest to lowest?

Accepted Answer

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

Question 16

Which of the following is a real-world application of radiation in biology?

Accepted Answer

Treating cancer by damaging DNA in cancer cells

Question 17

Which of the following best explains why water is considered a polar molecule?

Accepted Answer

The electrons are not shared equally between the oxygen and hydrogen atoms, resulting in a partial charge

Question 18

Which of the following is TRUE about chemical reactions in cells?

Accepted Answer

Chemical reactions rearrange molecules but cannot create or destroy matter

Question 19

A molecule of water ($$\mathrm{H_2O}) $$consists of two hydrogen atoms joined to one oxygen atom by covalent bonds. Which statement is TRUE about these bonds?

Accepted Answer

The electrons are not shared equally between the oxygen and hydrogen atoms

Question 20

Which of the following is an example of adaptation in living organisms?

Accepted Answer

A population of insects developing resistance to a pesticide over generations

Foundations of General Biology: Properties of Life, Scientific Method, and Essential Chemistry

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