3.3 Study Guide Flashcards
What is a difference between a food diagram and a trophic cascade diagram?
A food diagram only shows what eats what, but a trophic cascade diagram shows how each species effects the other species.
What is a producer?
An organism that produces it’s own food; at the bottom of the food chain.
What is an autotroph?
An organism that eats plants.
What is an organism called that only eats meat?
A carnivore.
Describe a primary consumer.
An organism that eats the producers of the food chain, most often an herbivore, and is also often eaten by carnivores.
How is a trophic cascade diagram set up?
The organism at the top of the food chain is written first, with an arrow leading to what it eats, another arrow to what that organism eats, and so on. Next to each arrow there is either a positive or negative sign to show how the organism is effected by the other organisms. A dotted line is used for indirect connections and a regualr line is used for direct connections.
What is an indirect effect in a trophic diagram?
An effect that an organism has on another but through indirect means (as in the species are not directly interacting in a large way).
What is an omnivore?
An organism that eats both plants and meat.
