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Chap 3 Ecosystem
ecosystems
| Question | Answer |
|---|---|
| adaptation | a characteristic that helps an organism survive in its enviroment |
| ecosystem | all living and nonliving things in an enviroment |
| food chain | the path energy and nutrients follow in an ecosystem flows in one direction |
| habitat | a place where an organism lives and finds food |
| limiting factor | something that restricts the growth of animals or plants (rainfall and sunlight) |
| mimicry | an adaption in which an animal mimics an unpleasant animal to protect against predators (king and coral snakes) |
| niche | a JOB an organism has in a community |
| population | all the members of a single species in an area at a specific time (rabbits in a forest area) |
| protective coloration | an adaptation animals use to hide (octopus) |
| symbiosis | a relationship between two or more different organisms |
| What is the difference between herbivore, carnivore, omnivore, scavenger, and decomposers? | herbivore -- animals that eat plants (producers) carnivore-- animals that eat other animals omnivore -- animals that eat both plants and animals decomposers break down dead plants and animals scavengers-- eat dead animals it did not hunt |
| carrying capacity | the measure of the size of a population that an area can support (think 10 milllion frogs) |
| food web | network of food chains with links in common (arrows show ENERGY FLOW) |
| What is the difference between a predator and prey? | predator -- hunts and kills other living things (hawk or bobcat) prey -- organism eaten by predators (frog, fish) |
| abiotic vs biotic | ABIOTIC nonliving/water,fire, rock BIOTIC living/tree, bird, cells |
| What is commensalism, mutualism and parasitism? Can you give an example of each symbiotic relationship? | |
| structural adaptations | are adjustments to internal or external physical structures (examples: fur color, long limbs, strong jaws, run fast) |
| behavioral adaptations | an adjustment in an organism's behavior (example:pack hunters like wolves, migration of birds or butterflies, hibernation) |
| Why are there so many producers in the energy pyramid? | Plants get energy from the SUN and they give energy to the herbivores. Because the herbivores only store 10% of what they eat, there has to be a large number of plants. |
Created by:
Team 5
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