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Chap 3 Ecosystem

ecosystems

QuestionAnswer
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