1. Ecosystems and Biomes 1.1 Ecosystems support life. 1.2
CHAPTER
NEW CHAPTER
Ecosystems and Biomes
the BIG idea
Matter and energy together support life within an environment.
1.1
Ecosystems support life.
1.2
Matter cycles through ecosystems.
1.3
Energy flows through ecosystems.
1.4
Biomes contain many ecosystems.
CHAPTER OUTLINE

2. Ecosystems support life.
1.1
Ecosystems support life.
Ecosystems are made up of living things (biotic) and nonliving things (abiotic).
ecology
ecosystem
plants
animals
Biotic
biotic factor
abiotic factor
Abiotic
temperature
Sun
soil
water
SECTION
OUTLINE

3. Matter cycles through ecosystems.
1.2
Matter cycles through ecosystems.
Water, carbon, and nitrogen are materials that are necessary for life. They move through ecosystems in continuous cycles.
cycle
water cycle
carbon cycle
nitrogen cycle
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Water Cycle
Carbon Cycle
Nitrogen Cycle
SECTION
OUTLINE

4. Energy flows through ecosystems.
1.3
Energy flows through ecosystems.
Producers are the basis of feeding relationships in ecosystems.
Producer
cattails
producer
Primary Consumer
caterpillar
consumer
decomposer
food chain
food web
energy pyramid
Secondary Consumer
frog
Tertiary consumer
heron
Food chains and food webs help show how energy moves through living things.
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OUTLINE

5. Biomes contain many ecosystems.
1.4
Biomes contain many ecosystems.
Ecosystems of land biomes
biome
are affected by climate
coniferous
are affected by conditions of the soil
deciduous
are characterized by types of plants
estuary
Land Biomes
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SECTION
OUTLINE

6. Biomes contain many ecosystems.
1.4
Biomes contain many ecosystems.
Ecosystems of water biomes
biome
can be freshwater or saltwater
coniferous
are affected by landscape if freshwater
deciduous
are affected by depth if marine
estuary
click image to enlarge
Aquatic Biomes
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OUTLINE

7. 1.1 Ecosystems support life. I. Ecosystems support life.
ecology
A. Living things depend on the environment.
ecosystem
B. Biotic factors interact with an ecosystem.
biotic factor
C. Many abiotic factors affect ecosystems.
abiotic factor
1. Temperature
2. Light
3. Soil
4. Water
KEY CONCEPT
SUMMARY

8. 1.2 Matter cycles through ecosystems.
II. Matter cycles through ecosystems.
cycle
A. All ecosystems need certain materials.
water cycle
B. Water cycles through ecosystems.
carbon cycle
C. Carbon cycles through ecosystems.
nitrogen cycle
D. Nitrogen cycles through ecosystems.
KEY CONCEPT
SUMMARY

9. 1.3 Energy flows through ecosystems.
III. Energy flows through ecosystems.
producer
A. Living things capture and release energy.
consumer
1. Producers
decomposer
2. Consumers
food chain
3. Decomposers
food web
B. Models help explain feeding relationships.
energy pyramid
1. Food Chain
2. Food Web
C. Available energy decreases as it moves through an ecosystem.
KEY CONCEPT
SUMMARY

10. 1.4 Biomes contain many ecosystems.
IV. Biomes contain many ecosystems.
biome
A. Regions of Earth are classified into biomes.
coniferous
1. Taiga and Tundra
deciduous
2. Desert and Grassland
estuary
3. Temperate Forest and Tropical Forest
B. Water covers most of Earth’s surface.
1. Freshwater Biomes
2. Marine Biomes
KEY CONCEPT
SUMMARY