Question 1

Which of the following best describes the scientific method as presented in the study materials?

Accepted Answer

A cyclical process involving observation, question, hypothesis, experiment, and analysis.

Question 2

In a controlled experiment, which variable is manipulated by the researcher?

Accepted Answer

Independent variable

Question 3

Which of the following is NOT one of the five unifying themes in biology?

Accepted Answer

Photosynthesis is the core of all life

Question 4

A scientist observes that a flashlight does not work. According to the scientific method, what is the next logical step?

Accepted Answer

Formulate a hypothesis about why the flashlight does not work.

Question 5

Which of the following best explains why a hypothesis can never be proven true in science?

Accepted Answer

Because new evidence may arise that contradicts the hypothesis.

Question 6

Which of the following is an example of a dependent variable in a biological experiment?

Accepted Answer

The growth rate of the plants measured in centimeters per week.

Question 7

Which level of biological organization includes all the living and nonliving components in a particular area?

Accepted Answer

Ecosystem

Question 8

Taxonomy is important in biology because it:

Accepted Answer

Allows scientists to classify and name organisms in a standardized way.

Question 9

Which of the following best illustrates the relationship between structure and function in biology?

Accepted Answer

The shape of a bird's beak is adapted to the type of food it eats.

Question 10

Which of the following is an emergent property that appears at the ecosystem level but not at the community level?

Accepted Answer

Energy flow and nutrient cycling

Question 11

A student claims that because a hypothesis has been tested many times and never falsified, it is now a fact. According to scientific principles, what is the best response?

Accepted Answer

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

Question 12

Which of the following best describes the role of DNA in living organisms?

Accepted Answer

DNA stores and transmits genetic information necessary for life processes.

Question 13

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

Accepted Answer

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

Question 14

Which of the following scenarios best demonstrates the concept of energy transfer in an ecosystem?

Accepted Answer

A lion eats a zebra, and the energy from the zebra's body is used by the lion for movement and growth.

Question 15

Which of the following is an example of an emergent property?

Accepted Answer

The ability of a heart to pump blood, which arises from the interaction of cardiac cells.

Question 16

Which of the following best describes the process of evolution?

Accepted Answer

A change in the genetic composition of a population over time.

Question 17

A researcher is testing the effect of a new drug on blood pressure. The group that receives a placebo is called the:

Accepted Answer

Control group

Question 18

Which of the following is a key characteristic of a good scientific experiment?

Accepted Answer

It includes a control group and tests only one variable at a time.

Question 19

Which of the following best illustrates the theme 'life depends on interactions within and between systems'?

Accepted Answer

The digestive system breaking down food and the circulatory system transporting nutrients.

Question 20

Which of the following is the best example of how structure and function are related in biology?

Accepted Answer

Red blood cells are shaped like discs to maximize their ability to carry oxygen.

Introduction to General Biology: Scientific Method, Classification, and Unifying Themes

Study Guide - Practice Questions

Study Guide - Flashcards