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Objective : Students will know that producers provide energy for other organisms in an ecosystem AND that almost all producers obtain energy from sunlight. KEY CONCEPT Life in an ecosystem requires a source of energy. All organisms must have a source of energy in order to survive.
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Objective: Students will know that producers provide energy for other organisms in an ecosystem AND that almost all producers obtain energy from sunlight.
KEY CONCEPT Life in an ecosystem requires a source of energy.
All organisms must have a source of energy in order to survive. However, not all organisms obtain their energy by eating other organisms.
Producers provide energy for other organisms in an ecosystem. Producersget their energy from non-living resourcesandare also called autotrophs because they make their own food. Auto= self
carbon dioxide + water + hydrogen sulfide + oxygen sugar + sulfuric acid Almost all producers obtain energy from sunlight. • Most producers use sunlight (photosynthesis) as their energy source. • Chemosynthesis in prokaryote producers use chemicals as an energy source instead of sunlight. Chemosynthetic bacteria thrive in many of Yellowstone National Park’s hydrothermal pools
Consumers are organisms that get their energy by eating other living or once-living resources. They are also called heterotrophs because they feed off of different things. Hetero=different
ASSESSMENT • Looking back to the biome you chose last week, please name some biotic and abiotic factors that exist there. • If a spider is a keystone species in an ecosystem, what would happen if we removed all of the spiders? • How does the stability of an ecosystem depend on its producers? 4. Could producers survive without consumers?
Looking back to the biome you chose last week, please name some biotic and abiotic factors that exist there. Biotic-alive (animals and plants) abiotic- not alive (water, soil, rocks) 2. If a spider is a keystone species in an ecosystem, what would happen if we removed all of the spiders? Flys or other insects would take over. They might eat all of the plants, which would, in turn, leave no food for the herbavores that eat those plants. When those animals die, their will be no food for the carnivores. The whole ecosystem would collapse. 3. How does the stability of an ecosystem depend on its producers? Producers bring energy into an ecosystem. • Could producers survive without consumers? Producers do not require consumers to survive. Consumers on the other hand, cannot live without producers.
