Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

1. Introduction to Anatomy & Physiology

Levels of Organization

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Levels of Organization

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Multiple Choice

Which of the following are examples of the organ level of biological organization?

Mitochondria and ribosomes

Atoms and molecules

Heart and liver

Epithelial tissue and connective tissue

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Verified step by step guidance

Understand the levels of biological organization: Biological organization is structured in a hierarchy from simplest to most complex. The main levels are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and organisms.

Identify the organ level: The organ level consists of structures composed of multiple tissue types that work together to perform specific functions. Examples include the heart, liver, lungs, and kidneys.

Differentiate between organelles and organs: Organelles, such as mitochondria and ribosomes, are components within cells that perform specific functions, but they are not considered organs.

Distinguish between tissues and organs: Tissues, such as epithelial and connective tissue, are groups of similar cells that perform a common function. Multiple tissues combine to form organs.

Recognize examples of organs: The heart and liver are examples of organs because they are composed of multiple tissue types and perform specific functions within the body.