3.3 Trophic Levels Flashcards
What are keystone species?
The most influential in the ecosystem, without them the whole things would temporarily collapse.
What’s the difference between autotrophs and heterotrophs?
Autotrophs- produce their own food
Heterotrophs- use others for food
What is a food web?
The visual example of what organisms eat what organisms.
What is a Trophic Cascade?
The visual representation of the effects of an organism onto another.
Define detritivore.
An animal which eats dead organic material
What are producers?
Producer- produces the food
If there are an even amount of negative effects, then the indirect will be ___. If there are an odd amount of negative effects, then the indirect will be _____.
positive, negative
What is the difference between , primary, secondary, tertiary, and quaternary consumers
Primary- eats producers
Secondary- eats primary
Tertiary- eats secondary
Quaternary- eats tertiary
