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Ecosystems

TermDefinition
ecosystems all the living and nonliving things in an area
biotic all of the living things in the ecosystem; plants and animals
abiotic all of the nonliving things in the ecosystem; soil, water, sunlight, weather
niche an organisms "address" in the community
habitat place where organisms live
community plants and animals living together in a defined area
population a specific group of animals or plants living in the same place at the same time
energy transfer
food chain model that shows the path of energy as it flows from one living thing to the next
food web model that shows how several food chains connect together
predator an animal that hunts and kills other animals for food
prey an animal that is hunted and killed by other animals
producer a living thing that makes their own food (through energy from the sun); plants
photosynthesis process by which plants, algae, and some bacteria use energy from sunlight to make their own food
consumer a living thing that gets energy by eating other living things
herbivore a consumer that eats only or mostly plants
carnivore a consumer that eats only or mostly animals
omnivore a consumer that eats both plants and animals
scavenger feed on dead organisms; earthworms, ants, vultures
decomposer recyclers; break down dead organic matter; bacteria, fungi (mushrooms)
energy pyramid shows the transfer of energy from one level of the food chain to the next; shows how the amount of energy changes as it moves through a food chain or web
symbiosis relationship in which two species live closely together
mutualism both species benefit from the symbiotic relationship; example: flowers and bees
parasite/host symbiotic relationship in which only one species benefits; parasite: organism that lives inside or on another organism (example: tick); host: organism supporting the parasite and not benefiting from the relationship (example: dog)
Created by: crstone
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