Practice - Topic 3.2: Levels of Organization in Living Things - 3.2
Practice Questions
Test your understanding with targeted questions
Arrange these levels of organization from simplest to most complex: Organ, Cell, Tissue, Organism, Organ System.
- Answer: Cell Tissue Organ Organ System Organism.
- Hint: Start with the smallest building block of life.
💡 Hint: Start with the smallest building block of life.
Is a Red Blood Cell an example of a cell, a tissue, or an organ?
- Answer: A cell.
- Hint: It is an individual unit specialized for carrying oxygen.
💡 Hint: It is an individual unit specialized for carrying oxygen.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What level of organization is formed by a group of tissues working together?
- Type: mcq
- Options: A) Cell, B) Organ, C) Organism, D) Organ System
- Correct Answer: B
- Explanation: An organ is a structure made of two or more types of tissues that work together to perform a specific function.
- Hint: Think about the level that comes directly after "tissue."
💡 Hint: Think about the level that comes directly after "tissue."
True or False: The cell is considered the basic unit of life because it is the smallest level of organization that can perform all life functions.
- Type: boolean
- Options: True, False
- Correct Answer: True
- Explanation: All living things are made of cells, and it is the simplest level where biological processes occur.
- Hint: Can a single tissue live on its own without being part of a cell or organism?
💡 Hint: Can a single tissue live on its own without being part of a cell or organism?
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Challenge Problems
Push your limits with advanced challenges
A new multi-cellular organism is found to have "Pumping Chambers," "Fluid Tubes," and "Gas-Exchange Filters." Map these to the correct Levels of Organization and predict the name of the Organ System they likely form.
- Solution: The pumping chambers and filters are Organs. The fluid tubes are likely Tissues or part of organs. Together, they likely form a Respiratory or Circulatory Organ System.
- Hint: Use the heart and lungs as your guide for comparison.
💡 Hint: Use the heart and lungs as your guide for comparison.
Critique the following statement: "In a multicellular organism, every cell is identical because they all belong to the same organism."
- Solution: The statement is incorrect. While they share the same DNA, cells undergo specialization to form different tissues. For example, a nerve cell is structurally different from a muscle cell so they can perform different functions.
- Hint: Think about why your brain feels different from your muscles.
💡 Hint: Think about why your brain feels different from your muscles.
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