Question 1

Which of the following is NOT a property common to all life?

Accepted Answer

Presence of a nucleus

Question 2

Which level of biological organization is immediately above the organ system?

Accepted Answer

Organism

Question 3

Which statement best describes the difference between quantitative and qualitative data in scientific investigations?

Accepted Answer

Quantitative data are numerical measurements, while qualitative data are descriptions.

Question 4

Which of the following is a good hypothesis?

Accepted Answer

If fertilizer is added to soil, then plant growth will increase.

Question 5

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

Accepted Answer

A group that is exposed to all variables except the one being tested

Question 6

Which subatomic particle determines the chemical behavior of an atom?

Accepted Answer

Electron

Question 7

What is the atomic number of an atom with 6 protons, 6 neutrons, and 6 electrons?

Accepted Answer

$$6$$

Question 8

Which of the following statements about radioactive isotopes is TRUE?

Accepted Answer

They have the same number of protons but different numbers of neutrons.

Question 9

How does the electron configuration of an atom influence its chemical behavior?

Accepted Answer

It determines the number and type of bonds the atom can form.

Question 10

Which type of bond is formed when electrons are shared equally between two atoms?

Accepted Answer

Nonpolar covalent bond

Question 11

Water has a high specific heat. What does this mean for living organisms?

Accepted Answer

Water can absorb or release large amounts of heat with only a slight change in its own temperature.

Question 12

Which property of water allows insects to walk on its surface?

Accepted Answer

Surface tension

Question 13

A solution has a pH of 4. What is its hydrogen ion concentration $$[H^+]$$?

Accepted Answer

$$1 	imes 10$$^{-4}$$ M

Question 14

Which of the following is a buffer system in human blood?

Accepted Answer

Carbonic acid-bicarbonate system

Question 15

Why is carbon unparalleled in its ability to form large, diverse molecules?

Accepted Answer

It can form four covalent bonds with other atoms.

Question 16

Which of the following best defines an organic compound?

Accepted Answer

A compound containing carbon and hydrogen

Question 17

Which of the following is an example of a hydrocarbon?

Accepted Answer

Methane ($$CH_4)$$

Question 18

Which type of isomer has the same molecular formula but different spatial arrangement around a double bond?

Accepted Answer

Cis-trans isomer

Question 19

Which functional group is characterized by a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group ($$-COOH$$)?

Accepted Answer

Carboxyl group

Question 20

Which of the following best explains Darwin's theory of descent with modification?

Accepted Answer

Species change over time, giving rise to new species through natural selection.

General Biology: Foundations, Chemistry of Life, and Water

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