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Energy Roles Producers :

Chapter 2 Study Guide. Energy enters the ecosystem from the sunlight where organisms known as producers convert it into food. Energy Roles Producers : Take in carbon from the air and through photosynthesis make sugar for its food and release oxygen into the air.

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Energy Roles Producers :

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  1. Chapter 2 Study Guide Energy enters the ecosystem from the sunlight where organisms known as producers convert it into food. • Energy Roles • Producers: • Take in carbon from the air and through photosynthesis make sugar for its food and release oxygen into the air. • Use the sun’s energy to make their own food through photosynthesis • Are the source of all food in an ecosystem • Consumers: Consumers are organisms that obtain energy by eating another organism. • There are 3 main types - • 1. Herbivore: eats only plants • 2. Carnivore: eats only animals • Scavenger: eats the bodies of dead animals • 3. Omnivore: eats both plants and animals • Decomposers: breaks down living and dead organisms • ex: mushroom, bacteria, and mold

  2. Energy Pyramid 3rd level consumer carnivores ex: hawk 2nd level consumer Carnivores or omnivores Ex: snake 10% of the energy transfers to the 3rd level consumer 10% of the energy transfers to the 2nd level consumer 1st level consumer Herbivores Ex: mouse 10% of the energy transfers to the 1st level consumer Producer Always starts the food web Ex: plants The amount of energy available decreases as you move up the pyramid. This means there are fewer animals at the top of the pyramid.

  3. A FOOD CHAIN is a series of events in which one organism eats another to obtain energy. • A FOOD WEB consists of many overlapping food chains.

  4. Water Cycle . Condensation: Gas cools and turns back into liquid. hail rain Precipitation: droplets get heavy and drop to the earth as rain, snow, sleet or hail. sleet snow Evaporation: water molecules absorb heat from the sun and change to a gas. lake

  5. Matter in an ecosystem is recycled because the supply is limited while need for it is not. Producers take in carbon from the air and make C6H12O6 (sugar) for their own food through photosynthesis Producers release oxygen into the air through photosynthesis. Sun 6CO2 Carbon dioxide 6O2 oxygen 6H2O water Biome photosynthesis C6H12o6

  6. Nitrogen Cycle: • Free nitrogen is in the air • Plants fix the nitrogen through root nodules which are bumps on the roots that store the fixed nitrogen. • Consumers eat the plants • Consumers dies • Decomposers release the nitrogen back into the air as free nitrogen. Biomes A biome is a group of ecosystems with similar climates and organisms. A Biome is determined by climate (temperature and amount of precipitation) because it limits the distribution of plant life. Climate: the typical weather pattern There are 6 major types of land biomes • Desert • Rainforest • -Temperate • -Tropical 3. Grassland 4. Deciduous 5. Boreal forest 6. Tundra/mountain and ice

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