Question 1

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

Accepted Answer

They all require a host cell to replicate.

Question 2

A scientist is testing the effect of fertilizer on tomato plant growth. Which of the following is the dependent variable in this experiment?

Accepted Answer

The height of the tomato plants

Question 3

Which of the following statements about DNA and viruses is correct?

Accepted Answer

Not all viruses have DNA; some use RNA instead.

Question 4

Which of the following best describes a prokaryotic cell?

Accepted Answer

A cell that does not have a nucleus

Question 5

In the biological hierarchy, which of the following is the most inclusive level?

Accepted Answer

Biosphere

Question 6

Which of the following is an example of a hypothesis-driven experiment?

Accepted Answer

Testing whether batteries are dead by replacing them in a flashlight

Question 7

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

Accepted Answer

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

Question 8

A compound is defined as:

Accepted Answer

Two or more elements held together by chemical bonds in a fixed ratio

Question 9

Which of the following best explains why NaCl (table salt) is considered a compound?

Accepted Answer

It consists of sodium and chlorine atoms bonded in a 1:1 ratio.

Question 10

If an atom has an atomic number of 6 and a mass number of 14, how many neutrons does it have?

Accepted Answer

$$14 - 6 = 8$$

Question 11

Which of the following statements about isotopes is correct?

Accepted Answer

Isotopes of an element have the same number of protons but different numbers of neutrons.

Question 12

Which of the following is a biologically relevant element found in living organisms?

Accepted Answer

Phosphorus ($$P)$$

Question 13

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

Accepted Answer

It serves as a baseline for comparison to the experimental group.

Question 14

Which of the following is an example of a quantitative variable?

Accepted Answer

The mass of tomatoes produced by a plant

Question 15

Which of the following statements about scientific hypotheses is correct?

Accepted Answer

A hypothesis can never be proven true, only supported by evidence.

Question 16

Which of the following is a correct statement about the atomic structure?

Accepted Answer

Protons and neutrons are found in the nucleus, while electrons are found in shells around the nucleus.

Question 17

Which of the following best describes the difference between unicellular and multicellular organisms?

Accepted Answer

Unicellular organisms consist of one cell, while multicellular organisms consist of many cells.

Question 18

Which of the following is a correct example of binomial nomenclature?

Accepted Answer

Homo sapiens

Question 19

Which of the following is a function of homeostasis in living organisms?

Accepted Answer

Maintaining a stable internal environment despite external changes

Question 20

Which of the following is true about the periodic table and atomic numbers?

Accepted Answer

The atomic number is equal to the number of protons in an atom.

General Biology: Foundations, Scientific Method, and Chemistry for Life

Study Guide - Practice Questions