1. Start-up for 4/14/14 What is a food web?
Why are producers and decomposers vital to the stability of a food web?
Why is energy lost as you move up a food web?

2. Biology, Chapter 3-3 Nutrient Cycles of Ecosystems
Students will:
Define ecology and related terminology.
Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
Summarize the results of nutrient limitations.

3. Define ecology and related terminology.
I Play Catcher Every BaseBall game.

4. What is Ecology? What is an ecosystem?
Define ecology and related terminology.
What is Ecology?
Ecology is the study of relationships between living things and their environment.
What is an ecosystem?
Ecosystem is a system of living things that interact with each other and with the non-living world.
A Biome is a collection of related ecosystems.

5. What is Biotic? What is Abiotic? Living factors of an ecosystem.
Define ecology and related terminology.
What is Biotic?
Living factors of an ecosystem.
Write 3 examples in your reminder box.
What is Abiotic?
Non-living factors of an ecosystem.
Write 3 examples in your reminder box.

6. Main Ecosystems: Desert Rainforest Ocean Deciduous Coniferous Forest
Define ecology and related terminology.
Main Ecosystems:
Desert
Rainforest
Ocean
Deciduous Coniferous Forest
Tundra
Chaparral
Grassland
Savanna
Temperate Forrest

8. B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
However……..
An ecosystem can be as large as the Sahara Desert, or as small as a puddle!!!
Ecosystems are more than just the organisms they contain. Geography, weather, climate and geologic factors also influence the interactions within an ecosystem.
Nutrient cycles contribute to maintaining the balance of an ecosystem.
Nutrient cycles move atoms between abiotic and biotic factors of an ecosystem.

9. The WATER Cycle: Analyze the following
B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
Look at both ends of the arrows to help
List two or more examples of
The WATER Cycle: Analyze the following
Abiotic Factors:
Water in ocean
Snow
Clouds
Air (Atmosphere)
Soil
Biotic Factors:
Plants
Animals
Humans

10. The WATER Cycle: Analyze the following
B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
List at least 3 examples of water moving between biotic and abiotic factors:
The WATER Cycle: Analyze the following
Plant Transpiration to Clouds
Seepage through soil to plant roots
Runoff to lakes where animals can drink

11. The Carbon Cycle Analyze the following
B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
Look at both ends of the arrows to help
List two or more examples of
The Carbon Cycle Analyze the following
Abiotic Factors:
CO2 in Atmosphere
Burning Fossil Fuels
Fire
CO2 in Ocean
Biotic Factors:
Plants
Animals
Decomposers

12. The Carbon Cycle Analyze the following
B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
List at least 3 examples of carbon moving between biotic and abiotic factors:
The Carbon Cycle Analyze the following
1. Animal Respiration releases CO2 to atmosphere
2. CO2 from atmosphere absorbed by producers for PSN
3. Decomposers break down dead organisms and release to atmosphere
What two processes play a major part in recycling carbon?

13. B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
The Nitrogen Cycle
Nitrogen Fixation – some plants (legumes) can take nitrogen from the air and convert it to ammonia (NH3). This is added to soil.
Denitrification – Conversion of nitrates to atmospheric nitrogen gas.

14. The Nitrogen Cycle Analyze the following
B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
Look at both ends of the arrows to help
List three or more examples of
The Nitrogen Cycle Analyze the following
Abiotic Factors:
N2 in Atmosphere
Nitrogen in fertilizer
Ammonia in soil
Nitrates in soil
Biotic Factors:
Plants
Animals
Decomposers

15. The Nitrogen Cycle Analyze the following
B) Summarize how water, carbon, and nitrogen cycle between biotic and abiotic factors of an ecosystem.
List at least 3 examples of nitrogen moving between biotic and abiotic factors:
The Nitrogen Cycle Analyze the following
1. Plants absorbing fertilizer from the soil
2. Plants fixing nitrogen gas into ammonia in the soil
3. Animals eating plants with nitrogen and going the bathroom

16. Balance Ecosystems will fail if they do not remain in balance.
C) Summarize the results of nutrient limitations.
Balance
Ecosystems will fail if they do not remain in balance.
No community can carry more organisms than its food, water and shelter can accommodate.

17. C) Summarize the results of nutrient limitations.

18. C) Summarize the results of nutrient limitations.
Why is this a bad thing?
Some algae blooms produce toxic chemicals that will kill the fish and contaminate shellfish.

19. Understanding Check – Write a 3-2-1 Summary
3 things I learned were
2 things I want to know more about or still have questions about are
1 thing I will never forget is