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18 Cards in this Set

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  • Back
the information gathered from experiments is called...
data
A structured procedure for collecting information to test a hypothesis is called..
experiment
A scientific explanation of known facts arrived at through repeated testing over time is a....
theroy
The part of the experiment in which all conditions are kept the same is the...
control
a experiment is
a test of hypothesis
breaks down dead organisms
decomposer
obtains energy and nutrients from autotrophs
heterotroph
step in the passage of energy and matter through an ecosystem
tropic level
place where an organism spends its life
habitat
reationship between organisms in which one organism benefits at the expense or another
parasitism
manufactures food using energy from the sun
autotroph
group formed by several populations
community
simple model for showing how matter and energy move through an ecosystem
food chain
feeds on dead organisms
scavenger
layer of earth that supports life
bioshere
relationship between organisms in which one benefits and the other is neither harmed or benefitted
commensalism
network of interconnected food chains
food web
relationship between organisms in which both benefits
mutualism