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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2:10 minutes

Problem 2

Textbook Question

Match each description on the left with the correct biome on the right. 2. The most complex and diverse biome 3. Ground permanently frozen 4. Deciduous trees such as hickory and birch 5. Limited to small coastal areas 6. Spruce, fir, pine, and hemlock trees 7. Home of ants, antelopes, and lions 8. North American plains a. chaparral b. savanna c. taiga d. temperate broadleaf forest e. temperate grassland f. tropical rain forest g. arctic tundra

Verified step by step guidance

Identify the characteristics of each biome listed in the descriptions and match them with the appropriate biome from the options provided.

For description 2, look for the biome known for its high biodiversity and complex ecosystem structure, typically found near the equator.

For description 3, find the biome characterized by extremely cold temperatures and soil that remains frozen year-round.

For description 4, select the biome that is known for trees that shed their leaves seasonally, commonly found in temperate regions.

For description 5, choose the biome that is typically found in small, specific areas with a Mediterranean climate.

For description 6, 7, and 8, match each description with the biome known for those specific types of vegetation or animal life, and geographical location respectively.

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Key Concepts

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

Biome Diversity

Biomes are large ecological areas on the Earth's surface, characterized by specific climate conditions, flora, and fauna. The most complex and diverse biome is typically the tropical rainforest, which hosts an immense variety of species and intricate ecosystems. Understanding the diversity within biomes helps in recognizing the unique adaptations of organisms and their interdependencies.

Permafrost

Permafrost refers to ground that remains frozen for two or more consecutive years, commonly found in the arctic tundra biome. This permanently frozen layer affects the types of vegetation that can grow and influences the overall ecosystem, as it limits root growth and water drainage. Knowledge of permafrost is crucial for understanding the challenges faced by organisms in extreme cold environments.

Deciduous Forests

Deciduous forests are characterized by trees that shed their leaves annually, such as hickory and birch. These forests experience four distinct seasons, which influence the life cycles of the plants and animals within them. Recognizing the features of deciduous forests is essential for matching them with their respective biomes and understanding their ecological roles.

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Related Practice

Textbook Question

Which of the following areas of study focuses on the exchange of energy, organisms, and materials between ecosystems?

a. Organismal ecology

b. Landscape ecology

c. Ecosystem ecology

d. Community ecology

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Textbook Question

You have seen that Earth's terrestrial biomes reflect regional variations in climate. But what determines these climatic variations? Interpret the following diagrams in reference to how each represents effects on global patterns of temperature, rainfall, and winds.

a. Solar radiation and latitude

b. Earth's orbit around the sun

c. Global patterns of air circulation and rainfall

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Textbook Question

Name the five main levels of study in ecology from smallest to largest.

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Textbook Question

Which lake zone would be absent in a very shallow lake?

a. Benthic zone