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 Heart2h 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

2. Cell Chemistry & Cell Components

Carbon

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Carbon

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Multiple Choice

Stanley Miller's experiments were significant because he demonstrated that __________.

the behavior of any molecule containing a carbon atom was fundamentally the same

organic molecules can be synthesized only by living organisms

lightning discharges could produce the molecules previously presumed to have originated in volcanic outgassings

a variety of simple organic compounds could be spontaneously synthesized from components in Earth's primitive atmosphere

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Verified step by step guidance

Understand the context of Stanley Miller's experiments: They were designed to simulate the conditions of early Earth to test the hypothesis that organic molecules necessary for life could form spontaneously.

Recognize the components used in Miller's experiment: He used a mixture of gases thought to be present in Earth's primitive atmosphere, such as methane (CH₄), ammonia (NH₃), hydrogen (H₂), and water vapor (H₂O).

Identify the process used in the experiment: Miller applied electrical sparks to the gas mixture to simulate lightning, which was a common energy source on early Earth.

Analyze the results of the experiment: After running the experiment for a week, Miller found that several simple organic compounds, including amino acids, had formed in the apparatus.

Conclude the significance of the experiment: Miller's work demonstrated that simple organic compounds could be synthesized from inorganic precursors under conditions that might have been present on early Earth, supporting the idea that life's building blocks could form naturally.