Producers The Base of the Food Chain

1
Producers (The Base of the Food Chain)

• Makes its own food

2
Life Depends on the Sun

• Photosynthesis by plants

3
Consumers

• Obtain Energy from other Organisms

4
Ecosystem Key Terms

• Types of Consumers Energy Source
• Herbivore Producers
• Carnivore Other Consumers
• Omnivore Producers and Consumers
• Decomposer Dead Organisms

5
Food Chains (Linear Relationships)
6
A Food Web (Non-Linear Possible Relationships)
7
Trophic Levels 10 Energy transfer between
levels.
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Bioaccumulation
Bioaccumulation is the increase in concentration
of a substance in living organisms as they take
in contaminated air, water, or food. As bigger
animals eat smaller animals, the level of
contamination in the food is added to the level
of contamination already in their body.
Bioaccumulation is a problem in the north
because of higher concentrations of toxic
pollution. Also, northern animals have a lot of
fat to keep them warm, toxins accumulate mostly
in fat
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Bioaccumulation
10
The Carbon Cycle
11
The Nitrogen Cycle
12
The Phosphorus Cycle
13
Ecological Succession