3.3 Flashcards
What is a keystone species
this is a species that plays a influential ecological role. basically if this species isn’t present the ecosystem doesn’t live as long or as easily.
What is an invasive species
a non-native species that out competes native species for resources.
What is a trophic cascade
the effects of different links on the ecosystem.
What is a producer
a producer is something makes their own food. usually at the bottom of a food web. Ex. grass, flowers, bushes
what is a primary consumer
this is an animal that eats the producers
what is a secondary consumer
an animal that eats primary consumers
what is a tertiary consumer
an animals that eats secondary consumers
what is a quaternary consumer
an animal that eats tertiary consumers
what is an autotroph
an organism that makes their own food
at what level in a food web would you find a carnivore
secondary and above
In a trophic cascade what does a solid arrow mean
a direct relation
