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Ecology Quiz #2
Term | Definition |
---|---|
Food web | Describes how energy flows between organisms throughout an entire ecosystem. |
Food chain | Describes how energy flows from one specific organism to another in an ecosystem. |
Habitat | Where an organism lives. Provides shelter. Access to food and water. A place to hide from predators. A safe place for offspring to live. Different organisms are adapted to living in different environments. |
Niche | An organism’s role or function in an ecosystem. How an organism “makes a living.” Way(s) in which an organism contributes to the functioning of the ecosystem as a whole. |
Consumers | Get their food from other organisms (by eating them) Break down food through cellular respiration Can be herbivores, carnivores, or omnivores Ex: All animals, some protist |
Decomposers | Break down dead organisms Release carbon back into the atmosphere Allow nutrients and minerals to be recycled Ex: Bacteria, Fung |
Producers | Make their own food through photosynthesis Break down that food through cellular respiration Ex: All plants, some protists and some bacteria |
Species | Organisms that are similar enough to breed sucessfully. “Breed successfully”: to produce offspring that can also reproduce. A horse and a donkey are not the same species, and can reproduce The offspring is a mule - mules can’t reproduce. |
Population | All the members of a certain species that live together in the same area. Can interact with each other. Use the same resources Live in the same habitats Fill the same niches Breed and care for offspring |
Omnivore | Eat everything, producers and consumers. |
Carnivore | Eats only consumers. |
Herbivore | Eat only produers. |
Primary Consumer | Eats producers |
Secondary Consumer | Eats primary comsumer |
Tertiary Consumer | Eats secondary consumer |