food chain Flashcards
is the flow of energy through living things within an ecosystem
energy flow
the amount of energy that moves
through a food chain
energy flow
● Shows the sequence of how energy is transferred from one organism to another.
● Feeding relationship that exists among organisms
Food chain
● is a step in nutritive series of an ecosystem.
● Refers to each step in the transfer of energy and matter in a community.
trophic level
Can manufacture their own food
producers or autotroph
● Obtain energy by eating plants and other animals
consumers or heterotroph
● Decomposes, or breaks down, organic material such as the remains of dead organisms
decomposers
feeds directly on plants
herbivore
eats meat, or the flesh of animals
carnivore
eats both plants and animals
omnivore
is a system of interlocking and interdependent food chains
food web
is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community
food web
● Indicates the total amount of energy present in each trophic level.
● Shows the loss of energy from one trophic level to the next.
● Shows clearly that the energy transfer from one trophic level to the next is accompanied by a decrease due to waste and the conversion of potential energy into kinetic energy and heat energy.
energy pyramid
From one trophic level to the next how many percent of the energy is passed on?
10%
● Organisms in a community survive by either producing or consuming food.
● levels of feeding in a community
trophic levels