Question 1

Which of the following best describes the role of a hypothesis in the scientific method?

Accepted Answer

A hypothesis is a statement that expresses what a scientist thinks is the answer to a proposed question and can be tested through experiments.

Question 2

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

Accepted Answer

Observation, hypothesis, experiment, theory

Question 3

Which molecule is the primary information carrier in living things?

Accepted Answer

DNA

Question 4

A student replaces the batteries in a flashlight and it works. Which part of the scientific method does this scenario best illustrate?

Accepted Answer

Testing a hypothesis through a controlled experiment

Question 5

Which of the following is NOT a property of life?

Accepted Answer

Ability to photosynthesize

Question 6

Which level of biological organization is defined as the basic unit of life?

Accepted Answer

Cell

Question 7

Which of the following best explains how evolution accounts for both the unity and diversity of life?

Accepted Answer

Evolution allows for adaptation to different environments, leading to diversity, while common ancestry explains unity.

Question 8

Which classification system divides organisms based on cell type and complexity?

Accepted Answer

Domain system

Question 9

Which of the following is an example of deductive reasoning in science?

Accepted Answer

Predicting that if all organisms are made of cells, then a newly discovered organism will also be made of cells.

Question 10

Which of the following best distinguishes between observational and experimental science?

Accepted Answer

Experimental science involves controlled experiments to test hypotheses, while observational science involves gathering data without manipulation.

Question 11

Which of the following is a correct prediction based on the hypothesis: 'If I replace the batteries, then my flashlight will work'?

Accepted Answer

After replacing the batteries, the flashlight will turn on.

Question 12

Which of the following is a quantitative observation?

Accepted Answer

The temperature increased by $$5\ ^\circ C$$

Question 13

Which of the following is NOT a domain in the classification of life?

Accepted Answer

Prokarya

Question 14

Which of the following statements about natural selection is correct?

Accepted Answer

Natural selection favors traits that increase survival and reproduction in a given environment.

Question 15

A scientist wants to test the effect of light on plant growth. She sets up two groups: one exposed to light and one kept in darkness. What is the independent variable in this experiment?

Accepted Answer

Exposure to light

Question 16

Which of the following best describes a controlled experiment?

Accepted Answer

An experiment where only one variable is changed while others are kept constant.

Question 17

Which of the following is an example of qualitative data?

Accepted Answer

The solution is blue.

Question 18

Which of the following is a correct statement about prokaryotes?

Accepted Answer

Prokaryotes lack membrane-bound organelles.

Question 19

Which of the following is the best example of a theory in biology?

Accepted Answer

The cell theory, which states that all living things are composed of cells.

Question 20

Which of the following best describes taxonomy?

Accepted Answer

The science of classifying and naming organisms.

General Biology: Chapter 1 Study Guide – Foundations of Life and Scientific Inquiry

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