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Ecosystems
Bragg
| Question | Answer |
|---|---|
| Biosphere | Part of Earth where life exists |
| Ecosystem | Made up of a community of organisms |
| Community | Consists of all of the populations of species that live and interact in the ecosystem |
| Population | Group of species that live together |
| Organism | Individual living thing |
| Producers | Make their own food using energy from the sun |
| Cosumers | Cannot make their own food, and need to eat plants and other animals for energy |
| Decomposers | Eat decaying matter (dead plants and animals). Break matter down and release nutrients and minerals back into the soil |
| Herbivore | Eats only plants |
| Carnivore | Eats only meat |
| Omnivore | Eats both plants and meat |
| Scavenger | Eats dead plants and animals |
| Food chain | Shows how each living thing gets food |
| Food chains always begin with a... | producer |
| Food web | Collection of food chains interconnected |
| Energy pyramid | Shows the amount of energy available at each trophic level of an ecosystem |
| Limiting Factor | Resource that is so scarce that it limits the size of a population |
| Carrying capacity | Largest population that an environment can support |
| Competition | When two or more organisms try to use the same resources |
| Prey | Organism that is killed and eaten by another |
| Predator | Organism that eats all or part of another |
| Symbiosis | Relationship in which two different organisms live in close association with each other |
| Mutualism | Benefit from |
| Commensalism | Unaffected by |
| Parasitism | Harmed by |
| Water Cycle | Process by which water moves through the Earth and atmosphere |
| Evaporation | Process that occurs when water changes from a liquid to a gas |
| Condensation | Cooling of water in the atmosphere, changing a gas to a liquid |
| Precipitataion | Water droplets fall from the atmosphere in the form of rain, sleet, snow, or hail |
| Transpiration | Passage of water vapor form a plant to the atmosphere |
| Runoff | Rainfall that is not absorbed by soil and travels to the ocean |
| Carbon Cycle | Exchange of carbon between the environment and living things |
| Decomposition | Breakdown of substances into simpler molecules |
| Combustion | Burning of a substance |
| Nitrogen Cycle | Movement of nitrogen between the environment and living things |
| Nitrogen Fixation | Bacteria in the soil and lightning are able to change nitrogen gas into forms that plants can use |
Created by:
masonteach
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