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Ecology.

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Presentation on theme: "Ecology."— Presentation transcript:

1 Ecology

2 Energy Flow The “cycle of life” starts with the ______
All living things that use the suns energy for making food are called _________ or producers

3 Photosynthesis Photo means light and synthesis means put together
Photosynthesis is how plants use light and water to make sugar. Sugar is created in the green parts of the plant. Plants absorb a common gas called carbon dioxide, pull water up through their roots and use light to make sugar. Plants use sugar to grow. Plants give off oxygen as a by-product. So overall the green parts of the plant makes the sugar and oxygen. Carbon dioxide +water+sunlight= sugar +Oxygen

4 chemosynthesis

5 Consumers Heterothrophs (consumers) Herbivores Carnivores Omnivores-
Detritivores- Decomposers

6 Feeding relationships
Energy Flows through an ecosystem in one direction sun or inorganic compounds to autothrophs and then various hetertrophs Food Chain-series of steps in which organisms transfer energy by eating or being eaten.

7 Food Web A network of feeding relationships divided into tropic levels

8 Ecological Pyramids Energy pyramid- shows the relative amount of energy available at each tropic level. Organisms use 10 percent of this energy for life processes. The rest is lost as heat. Biomass Pyramid- represents the amount of living organic matter at each tropic level

9


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