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Levels of organization in order
atoms and molecules - cells - tissues - organ - organ system - organism - population - community - ecosystem - biome - biosphere
mass of all living organisms in an area "living weight"
ability to do work
what kind of energy do we use
all living things need ________ to function
organisms that create their own energy
making energy using sun
formation of energy through chemicals
auto = ?
troph = ?
organisms that get their energy from another organism
meat AND plant eaters
dead organism eaters
hetero = ?
each step in a food chain is called a ________
a representation of the flow of energy
ecological models used to show the flow of energy (2)
food webs, and food chains
Each level of a food web or food chain gets it energy how?
from the previous level
a simple model that shows how energy flowd through an ecosystem
more complex feeding relationships
why are food webs more complex than food chains?
each organism feed on more than one species
Energy in Ecosystem