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An animal that only eats plants is...
A herbivore
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An animal that only eats meat is...
A Carnivore
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An animal that eats both plants and animals are...
Omnivores
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What is the first level of the food chain/ pyramid after the producer 
caterpillar or 1st order heterotroph
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What is the second level of the pyramid called?
Bluetit or 2nd order heterotroph
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What is the top level called?
Sparrowhawk or 3rd order heterotroph
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The nonliving parts of an organism's environment
(i.e. dirt, water, rocks)
abiotic factors
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Made up of interacting populations in a certain area at a certain time
biological community
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the portion of the earth that supports living things
biosphere
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all the living organisms that inhabit an environment
biotic factors
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A symbiotic relationship in which one species benefits and the other is neither harmed nor benefited.
Commensalism
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the study of interactions that take place between organisms and their environment
ecology
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made up of interacting populations in a biological community and the community's abiotic factors.
ecosystem
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The place where an organism lives out its life
habitat
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A symbiotic relationship in which both species benefit
mutualism
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All strategies and adaptations a species uses in its environment
niche
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A symbiotic relationship in which a member of one species derives benefit at the expense of another species
parasitism
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a group of organisms, all of the same species, which interbreed and live in the same area at the same time
population
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the relationship in which there is a close and permanent association between different species is...
symbiosis
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an organism that uses light energy or energy stored in chemical compounds is a producer or...
autotroph
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An organism that cannot make its own food and feeds on other organisms is called a....
heterotroph
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organisms that break down and release nutrients are...
decomposers
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A simple model that scientists use to show how matter and energy move through an ecosystem.
food chain 
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a feeding step
trophic level
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The model that scientists use to show all possible feeding relationships
food web
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the total weight of living matter at each trophic level
biomass
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