Question 1

Which of the following best describes a scientific theory?

Accepted Answer

A testable and well-supported explanation for a broad phenomenon, 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 organelles and a nucleus?

Accepted Answer

Eukarya

Question 9

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

Accepted Answer

To determine if changes in blood pressure are due to the drug and not other factors

Question 10

Which of the following best illustrates the concept of homeostasis?

Accepted Answer

A human sweating to cool down during exercise

Question 11

Which of the following is a correct statement about scientific hypotheses?

Accepted Answer

They must be falsifiable and testable

Question 12

Which process is described by the Central Dogma of Biology?

Accepted Answer

DNA codes for RNA, which codes for proteins

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 producer in an ecosystem?

Accepted Answer

A plant converting sunlight into chemical energy

Question 15

Why is it important for scientific papers to be peer-reviewed before publication?

Accepted Answer

To ensure the research is evaluated by experts for accuracy and validity

Question 16

Which of the following best describes the role of collaboration in scientific research?

Accepted Answer

It allows scientists to expand and build upon discoveries by sharing ideas and results

Question 17

A multicellular organism grows and develops following instructions coded by its genes. Which principle does this illustrate?

Accepted Answer

Growth and development

Question 18

Which of the following is a correct sequence for the steps of the scientific method?

Accepted Answer

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

Question 19

If an experiment includes more than one variable, what is the most likely consequence?

Accepted Answer

It becomes difficult to determine which variable caused the observed change

Question 20

Which of the following is the correct order of organization above the level of organism?

Accepted Answer

Population, community, ecosystem, biosphere

Introduction to Biology: The Scientific Method and Properties of Life

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