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

Properties of Water- Thermal

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Properties of Water- Thermal

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Multiple Choice

If water were not a polar molecule, how would the effects of climatic warming differ from those currently observed or predicted to occur in the future?

If water molecules were nonpolar, then water vapor would be less effective as a greenhouse gas, and the effects of global warming would be less extreme.

The effects would be worse because a loss of the polar molecular structure would lead to a greater amount of heat absorbed by water molecules and, thus, an increase in its specific heat.

If water were nonpolar, the effects on global warming would be only slightly worse because there are other polar molecules that can moderate climate as water does.

The effects would be drastically worse because the loss of the polar nature of water would greatly reduce its specific heat and its ability to moderate temperature.

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Verified step by step guidance

Understand the concept of polarity in water molecules: Water is a polar molecule, meaning it has a partial positive charge on one side and a partial negative charge on the other. This polarity allows water to form hydrogen bonds, which are crucial for its unique properties.

Explore the role of water's specific heat: Water's high specific heat capacity is due to its polar nature, allowing it to absorb and retain heat effectively. This property helps moderate Earth's climate by absorbing heat during warm periods and releasing it during cooler periods.

Consider the impact of nonpolar water molecules: If water were nonpolar, it would not form hydrogen bonds effectively, leading to a lower specific heat capacity. This means water would absorb and release heat more rapidly, reducing its ability to moderate temperature changes.

Analyze the effects on global warming: With a lower specific heat, nonpolar water would contribute to more extreme temperature fluctuations, exacerbating the effects of global warming. The loss of water's ability to moderate temperature would lead to more drastic climate changes.

Evaluate the overall climatic impact: The absence of water's polar nature would significantly impair its role in climate regulation, leading to more severe consequences of global warming, as water would no longer effectively buffer temperature changes.