3.3 Study Guide Flashcards
Definition of Trophic Levels
The position that is occupied by a species in a food web/cascade
Definition of Autotroph
An organism that produces its own food
Definition of Heterotroph
An organism that consumes other organisms for its source of energy.
Definition of Herbivore
An organism that eats plants/vegetation.
Definition of Omnivore
An organism that eats both plants and animals
Definition of Carnivore
An organism that eats animals
Definition of Detritivore
An organism that feeds on dead and decomposing organic matter
Definition of Keystone Species
Influential Ecological Role ( Increase Biodiversity )
Definition of Trophic Cascade
Ecological interactions that can control entire ecosystems
What is the difference between Trophic Cascades and Food webs
Trophic cascades show how one species affects others and food webs show what the species eat.
If an organism eats a producer, what is its trophic level?
Primary
If an organism creates its food, what is its trophic level?
Producer
If an organism eats a primary consumer, what is its trophic level?
Secondary Consumer
If an organism eats a secondary consumer, what is its trophic level?
Tertiary Consumer
If an organism eats a tertiary consumer, what is its trophic level?
Quaternary Consumer