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Transcript of Ecology
Who live in small caves, known as Niches, for hutches.
These Nutches have troubles, the biggest of which is
The fact there are many more Nutches than Niches.
Each Nutch in a Nich knows that some other Nutch
Would like to move into his Nich very much.
So each Nutch in a Nich has to watch that small Nich
Or Nutches who haven't got Niches will snitch.
-On Beyond Zebra (1955)
Scientists study ecology
to get information that is
resolve many of
They look at:
Commensalism: one member benefits and the other is not harmed
Mutualism: two species live together and both benefit
Parasitism: one member benefits and the other is harmed
Trophic Levels Primary producers: organisms are autotrophs
Consumers: organisms are heterotrophs (herbivore,
carnivores, and omnivores)
Energy cannot be recycled thus it flows one way through primary producers to consumers to decomposers
The greater the
number of trophic
levels between consumers and primary producers the smaller the amount of energy that is available to the consumers compared to the energy originally captured by the primary producers Energy
Essential for life’s processes (ultimate source of energy is the sun)