Question 1

Which of the following best describes a scientific theory?

Accepted Answer

A testable and well-supported explanation for a broad set of observations, backed by extensive research.

Question 2

In a controlled experiment testing the effect of fertilizer on plant growth, which group receives the fertilizer?

Accepted Answer

The variable group

Question 3

Which section of a scientific paper should allow another researcher to repeat the experiment and obtain similar results?

Accepted Answer

Materials and methods

Question 4

A scientist observes that a certain bacteria moves toward light. Which property of life does this demonstrate?

Accepted Answer

Sensitivity or response to stimuli

Question 5

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

Accepted Answer

Ability to photosynthesize

Question 6

A polar bear maintains its body temperature in cold climates using fur and blubber. This is an example of:

Accepted Answer

Homeostasis

Question 7

Which of the following correctly lists the levels of biological organization in humans from smallest to largest?

Accepted Answer

Atoms, molecules, organelles, cells, tissues, organs, organ systems, organism

Question 8

Which domain of life includes organisms with membrane-bound nuclei?

Accepted Answer

Eukarya

Question 9

A student claims that a hypothesis is the same as a theory. Which statement best corrects this misconception?

Accepted Answer

A hypothesis is a suggested, testable explanation for a specific observation, while a theory is a well-supported, broad explanation for many observations.

Question 10

Which of the following is an example of energy processing in living organisms?

Accepted Answer

Plants converting sunlight into chemical energy through photosynthesis

Question 11

Why is it important for experiments to have only one variable?

Accepted Answer

To ensure that any observed change can be attributed to that variable alone

Question 12

Which of the following best describes homeostasis?

Accepted Answer

The maintenance of relatively constant internal conditions despite external changes

Question 13

A scientific paper includes a section that narrates findings without interpretation. Which section is this?

Accepted Answer

Results

Question 14

Which of the following is a falsifiable statement suitable for scientific investigation?

Accepted Answer

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

Question 15

Which process ensures that scientific papers are evaluated by experts before publication?

Accepted Answer

Peer review

Question 16

Which property of life is directly related to the Central Dogma of Biology ($$DNA ightarrow RNA ightarrow 	ext{Protein}$$)?

Accepted Answer

Growth and development

Question 17

A scientist wants to test whether a new drug lowers blood pressure. What is the most important reason to include a control group in the experiment?

Accepted Answer

To compare the effects of the drug to a group not receiving the drug

Question 18

Which of the following is the correct order of the steps in the scientific method?

Accepted Answer

Observation, question, hypothesis, experiment, analysis, sharing results

Question 19

Which of the following statements about prokaryotes is correct?

Accepted Answer

They lack membrane-bound organelles and a nucleus.

Question 20

A researcher finds that a new species of plant bends toward light, reproduces by seeds, and maintains a stable internal pH. Which three properties of life are demonstrated?

Accepted Answer

Sensitivity to stimuli, reproduction, homeostasis

Introduction to Biology: The Scientific Method and Properties of Life

Study Guide - Practice Questions

Study Guide - Flashcards