Energy flow in Ecosystems

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Terms in this set (...)

carnivore
An animal that eats only other animals.
consumer
An organism that gets its energy from eating other living things.
herbivore
An animal that eats only plants.
omnivore
An animal that eats both plants and animals.
producer
An organism that makes its own food - at the bottom of the energy pyramid
scavenger
A carnivore that eats animals it didn't kill. Almost all carnivores are this sometimes.
food web
A connected set of food chains in the same ecosystem.
food chain
A series of organisms that depend on each other for energy.
decomposer
An organism that gets energy by absorbing nutrients from dead material and wastes.
primary consumer
A consumer that eats producers
secondary consumer
A consumer that eats primary consumers
tertiary consumer
A consumer that eats secondary consumers
energy pyramid
Triangular diagram that shows the availability of energy in a food chain
1st
Trophic level at the bottom of an ecological pyramid
sun
Source of energy for photosynthesis.
photosynthesis
Process of using light energy to make food
autotroph
organisms that make their own food, aka producers
heterotroph
organisms that get food from other organisms, aka consumers and decomposers
decrease in available energy as you go from ____ to _____ of energy pyramid
___ in available energy as you go from the bottom to the top of the energy pyramid
10%
% of total energy passed from lower trophic level to the level above it
90%
% of energy used by organisms for life processes, not stored or available for trophic level above them

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