Table of contents

1. Introduction to Biology2h 42m
2. Chemistry3h 37m
3. Water1h 26m
4. Biomolecules2h 23m
5. Cell Components2h 26m
6. The Membrane2h 31m
7. Energy and Metabolism2h 0m
8. Respiration2h 40m
9. Photosynthesis2h 49m
10. Cell Signaling59m
11. Cell Division2h 47m
12. Meiosis2h 0m
13. Mendelian Genetics4h 44m
14. DNA Synthesis2h 27m
15. Gene Expression3h 6m
16. Regulation of Expression3h 31m
17. Viruses37m
- Viruses
  37m
18. Biotechnology2h 58m
19. Genomics17m
- Genomes
  17m
20. Development1h 5m
21. Evolution3h 1m
22. Evolution of Populations3h 53m
23. Speciation1h 37m
24. History of Life on Earth2h 6m
25. Phylogeny2h 31m
26. Prokaryotes4h 59m
27. Protists1h 12m
28. Plants1h 22m
29. Fungi36m
- Fungi
  19m
- Fungi Reproduction
  17m
30. Overview of Animals34m
- Overview of Animals
  34m
31. Invertebrates1h 2m
32. Vertebrates50m
33. Plant Anatomy1h 3m
34. Vascular Plant Transport1h 2m
- Water Potential
  1h 2m
35. Soil37m
- Soil and Nutrients
  20m
- Nitrogen Fixation
  16m
36. Plant Reproduction47m
- Flowers
  33m
- Seeds
  14m
37. Plant Sensation and Response1h 9m
38. Animal Form and Function1h 19m
39. Digestive System1h 10m
- Digestion
  1h 3m
- Blood Sugar Homeostasis
  7m
40. Circulatory System1h 49m
41. Immune System1h 12m
42. Osmoregulation and Excretion50m
- Osmoregulation and Excretion
  50m
43. Endocrine System1h 4m
- Endocrine System
  1h 4m
44. Animal Reproduction1h 2m
- Animal Reproduction
  1h 2m
45. Nervous System1h 55m
- Neurons and Action Potentials
  1h 8m
- Central and Peripheral Nervous System
  46m
46. Sensory Systems46m
- Sensory System
  46m
47. Muscle Systems23m
- Musculoskeletal System
  23m
48. Ecology3h 11m
49. Animal Behavior28m
- Animal Behavior
  28m
50. Population Ecology3h 41m
51. Community Ecology2h 46m
52. Ecosystems2h 36m
53. Conservation Biology24m
- Conservation Biology
  24m

48. Ecology

Introduction to Ecology

General Biology

48. Ecology

Introduction to Ecology

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2:05 minutes

Problem 4

Textbook Question

Areas of low solar irradiation are
a. Closer to the equator than to the poles
b. Closer to the poles than the equator
c. At high altitudes
d. Close to large bodies of water
e. More than one of the above is correct

Verified step by step guidance

Understand the concept of solar irradiation: Solar irradiation refers to the amount of solar energy received per unit area. It is influenced by factors such as latitude, altitude, and proximity to water bodies.

Recall the relationship between latitude and solar irradiation: Areas closer to the equator receive higher solar irradiation due to the direct angle of sunlight, while areas closer to the poles receive lower solar irradiation because sunlight strikes at a more oblique angle.

Consider the effect of altitude: High-altitude areas can receive more solar irradiation because the atmosphere is thinner, reducing the scattering and absorption of sunlight. However, this is not directly related to low solar irradiation.

Evaluate the role of large bodies of water: Proximity to large bodies of water can moderate temperatures but does not significantly affect the amount of solar irradiation received.

Analyze the options: Based on the above points, identify which option(s) correctly describe areas of low solar irradiation. Focus on latitude (closer to the poles) and eliminate options that do not align with the concept of solar irradiation.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Solar Irradiation

Solar irradiation refers to the power of solar radiation received per unit area, typically measured in watts per square meter. It varies significantly across the Earth's surface due to factors such as latitude, season, and atmospheric conditions. Areas closer to the equator generally receive more direct sunlight year-round, while regions near the poles receive less due to the angle of sunlight incidence.

Latitude and Climate

Latitude is a geographic coordinate that specifies the north-south position of a point on the Earth's surface. It plays a crucial role in determining climate patterns, including temperature and solar energy distribution. Regions at higher latitudes (closer to the poles) typically experience lower temperatures and reduced solar irradiation compared to those near the equator.

Altitude and Solar Exposure

Altitude, or elevation above sea level, can influence solar exposure and temperature. Higher altitudes often experience cooler temperatures and can have varying solar irradiation levels depending on geographic location. However, in some cases, high-altitude areas may receive more direct sunlight due to thinner atmosphere, but this does not necessarily correlate with overall solar energy availability compared to lower latitudes.

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Areas of low solar irradiation are a. Closer to the equator than to the poles b. Closer to the poles than the equator c. At high altitudes d. Close to large bodies of water e. More than one of the above is correct

Key Concepts

Solar Irradiation

Latitude and Climate

Altitude and Solar Exposure

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Areas of low solar irradiation are
a. Closer to the equator than to the poles
b. Closer to the poles than the equator
c. At high altitudes
d. Close to large bodies of water
e. More than one of the above is correct