Question 1

Which of the following best describes the scientific method as used in biology?

Accepted Answer

A logical combination of scientific processes used to answer questions about the natural world.

Question 2

In an experiment investigating how light affects seed germination, which variable is the independent variable?

Accepted Answer

The amount of light provided to the seeds.

Question 3

Which of the following is NOT considered a characteristic of life?

Accepted Answer

Ability to photosynthesize.

Question 4

According to cell theory, which statement is correct?

Accepted Answer

All living things are made up of one or more cells.

Question 5

Which scientist is credited with first observing living cells under a microscope?

Accepted Answer

Anton van Leeuwenhoek

Question 6

Which of the following best explains the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

Question 7

Which level of biological organization is immediately above the tissue level?

Accepted Answer

Organ

Question 8

A scientist wants to test the hypothesis: 'If temperature increases, then the rate of seed germination will increase.' Which is the dependent variable?

Accepted Answer

The rate of seed germination.

Question 9

Which tissue type is specialized for transmitting electrical signals throughout the body?

Accepted Answer

Nervous tissue

Question 10

Which of the following is an example of maintaining homeostasis in the human body?

Accepted Answer

Sweating to cool down when overheated.

Question 11

Stem cells are important in biology because:

Accepted Answer

They have the potential to differentiate into a wide variety of specialized cell types.

Question 12

Which of the following best describes an organ system?

Accepted Answer

A group of organs working together to perform complex functions.

Question 13

Which of the following is NOT a function of connective tissue?

Accepted Answer

Transmit electrical signals.

Question 14

Which statement about the hierarchy of biological organization is correct?

Accepted Answer

Tissues are composed of cells.

Question 15

Which of the following is a correct sequence from smallest to largest in biological organization?

Accepted Answer

Atom $\rightarrow$ Cell $\rightarrow$ Tissue $\rightarrow$ Organ $\rightarrow$ Organism

Question 16

Which of the following is a real-world example of the application of the scientific method?

Accepted Answer

A doctor observes symptoms, forms a hypothesis about the disease, tests with diagnostic tools, and analyzes results.

Question 17

Which of the following statements about muscle tissue is correct?

Accepted Answer

Muscle tissue is composed of long cells called muscle fibers that contract to produce movement.

Question 18

Which of the following is a function of epithelial tissue?

Accepted Answer

Forming protective barriers and lining surfaces.

Question 19

A researcher designs an experiment to test the effect of soil pH on plant growth. Which step of the scientific method is being applied when the researcher collects and analyzes the height of the plants?

Accepted Answer

Recording and analyzing data.

Question 20

Which of the following best illustrates the concept of homeostasis?

Accepted Answer

A lizard basking in the sun to raise its body temperature.

Biology: Structure & Function – Foundations, Scientific Method, and Characteristics of Life

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