food web
producers-1-2-3-4
arrows show the transfer of energy
trophic cascades
+ & -
_____> means direct
——-> means indirect
keystone species
influential ecological role
invasive species
non-native species
out-compete native species
autotroph
plants
heterotroph
animal
what level do you find herbivores
1
what level do you find omnivores
2
what level do you find carnivores
3/4