+20 Questions on the Organization of Living Things
Here are 20 multiple choice questions on the Organization of Living Things, ideal for middle or high school biology students. The answers are provided at the end.
Multiple Choice Questions: Organization of Living Things
1. What is the simplest level of biological organization?
A) Organ
B) Cell
C) Tissue
D) Organism
2. Which of the following is the correct order from simplest to most complex?
A) Organ → Cell → Tissue → Organism
B) Cell → Tissue → Organ → Organ system → Organism
C) Tissue → Cell → Organ system → Organ
D) Organism → Organ system → Organ → Cell
3. What is a group of similar cells that perform a specific function called?
A) Organ
B) System
C) Tissue
D) Cell group
4. Which level of organization comes after tissues?
A) Cells
B) Organs
C) Organ systems
D) Organisms
5. What are the basic building blocks of all living organisms?
A) Organs
B) Tissues
C) Cells
D) Systems
6. Which of these represents the highest level of organization in a human body?
A) Organ
B) Organ system
C) Cell
D) Organism
7. Which of the following is NOT a level of biological organization?
A) Tissue
B) Molecule
C) Organ
D) Machine
8. Which of these is an example of a tissue?
A) Stomach
B) Muscle
C) Heart
D) Brain
9. What do several organs working together form?
A) Tissue
B) Organ system
C) Organism
D) Cell
10. Which level includes all other levels of biological organization?
A) Cell
B) Organ system
C) Organism
D) Organ
11. Which is an example of an organ system?
A) Nervous system
B) Brain
C) Neuron
D) Muscle
12. A single muscle cell is part of which level of organization?
A) Organ
B) Organ system
C) Tissue
D) Cell
13. Which of the following correctly matches the level with its example?
A) Tissue - Heart
B) Organ - Stomach
C) Organ system - Cell membrane
D) Cell - Respiratory system
14. Which structure in the body contains all the other levels?
A) Organ
B) Tissue
C) Organism
D) Cell
15. Which of these structures is made up of tissues?
A) Organ
B) Molecule
C) Cell
D) Atom
16. What is the name for a group of similar organs working together?
A) Organism
B) Tissue
C) Organ system
D) Cell
17. In multicellular organisms, what allows specialization of cells?
A) Random movement
B) Cell walls
C) Cellular organization
D) External factors
18. Which of the following best describes a multicellular organism?
A) Made of a single cell
B) Made of many identical cells doing the same job
C) Made of many cells with specialized functions
D) Made of tissues only
19. Which level comes immediately before the organ system in organization?
A) Cell
B) Organ
C) Tissue
D) Organism
20. What is the main advantage of having levels of organization in living things?
A) It increases body weight
B) It reduces energy use
C) It allows division of labor and efficiency
D) It makes organisms simpler
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Answer Key
1. B) Cell
2. B) Cell → Tissue → Organ → Organ system → Organism
3. C) Tissue
4. B) Organs
5. C) Cells
6. D) Organism
7. D) Machine
8. B) Muscle
9. B) Organ system
10. C) Organism
11. A) Nervous system
12. D) Cell
13. B) Organ - Stomach
14. C) Organism
15. A) Organ
16. C) Organ system
17. C) Cellular organization
18. C) Made of many cells with specialized functions
19. B) Organ
20. C) It allows division of labor and efficiency
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