Energy Flow Flashcards
Name the ways that organism can be groups according to
Organisms may also be grouped according to the way they obtain their energy.
the way they obtain their food
What are these categories called
Tropic levels or feeding levels
Trophic level one
Trophic level two
Trophic level three
Trophic level four
Trophic level one - producers (plants or autotrophs)
Trophic level two - primary consumers (herbivores)
Trophic level three - secondary consumers (carnivores and omnivores)
Trophic level four - tertiary consumers (carnivores [predators])
What is a food chain
A food chain represents the flow of food and energy through consecutive organisms in an ecosystem
What do the arrows in a good chain do
The arrow point in the direction of the energy flow and indicate consumption
What is a food web
The interconnected food chains of all the organisms in an ecosystem
What is a food pyramid
An ecological pyramid is a graphical representation of the numberoforganisms,or biomass or amount of energy at each of the trophic (feeding) levels.
List the three types of food pyramids
Pyramid of energy
Pyramid of numbers
Pyramid of biomass
What is the pyramid of energy
It shows the relative amount of energy available in each trophic level.
pyramid of energy
why does the transfer of energy decrease form one trophic level to another
energy is used by the organism in the previous level for their daily metabolic use and energy is also lost through their metabolic waste
what is the pyramid of numbers
its shows the number of organism in each tropic level
pyramid of numbers
what happens the huge the trophic levels goes
their is a decrease in the number of organism in the trophic level
what is the pyramid of biomasss
it indicates the the total mass of the organisms at each level
pyramid of biomasss
describe the amount of mass needed in lower levels and higher level
a larger mass of organisms in the lower levels is required to support a lower mass in the higher levels
