Principles of Ecology
NEW VOCABULARY
autotroph
biomass
carnivore
detritivore
food chain
food web
herbivore
heterotroph
omnivore
trophic level
Caden Holm a
yoad
Use your book to fill in vocabulary terms in this paragraph about
food chains.
In a
, matter and energy move from
. A food chain is made of several steps; each organism
in the food chain represents a step called a
A(n)
to
is a heterotroph that eats only plants, whereas a
preys on other heterotrophs. A(n)
plants and animals. Nutrients are returned to the soil, air, and water by
A model that shows all the possible feeding
relationships at each trophic level is called a
If you were a
scientist and you wanted to determine the weight of living matter at a
certain trophic level, you would measure the
eats both