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Skip Navigation LinksKCC Home > Academic Departments > Biological Sciences > 11New > Webpages > Unit 3, Lesson 4

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Anatomy and Physiology I
Unit 1: Introduction to Human Anatomy and PhysiologyExpand Unit 1: Introduction to Human Anatomy and Physiology
Unit 2: The Cell and It’s EnvironmentExpand Unit 2: The Cell and It’s Environment
Unit 3: Cellular ChemistryExpand Unit 3: Cellular Chemistry
Unit 4: Biomolecules, Cell Architecture and Cellular Molecular FunctionExpand Unit 4: Biomolecules, Cell  Architecture and Cellular Molecular Function
Unit 5: Tissues, Membranes and GlandsExpand Unit 5: Tissues, Membranes and Glands
Unit 6: Integumentary SystemExpand Unit 6: Integumentary System
Unit 7: Skeletal System
Unit 8: Muscular System
Unit 9: Nervous System Introductory Concepts
Unit 10: The Central Nervous System - The Spinal Cord
Unit 11: The Central Nervous System - The Brain
Unit 12: The Autonomic Nervous System and Smooth Muscle

Lesson 4 - UNIT 3 - Quiz #1

1. Define the following fundamental substances in nature: atom, element, molecule, compound,
and matter.
2. Diagram the structure of any atom of the instructor's choice between atomic number 1 and 20.
3. Explain the concept of density in words and mathematically.
4. Explain and differentiate between the concepts of physical half-life and biological half-life of
radioactive isotopes.









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