Community Organization and Structure Flashcards
This is a species that fills roles that are critically important to the functioning of the community
keystone species
In the food web this is not a food source for other species but eats them
top predator
In the food web this is an organism that is a food source for others as well as one that eats other organisms
intermediate species
In the food web this is one that does not feed upon any other species, but is eaten by other species
basal species
This is the interwoven movement of energy between trophic levels within an ecosystem
food web
List the trophic levels from 1st to last
plants, herbivores, omnivores and cornivores
This describes where an animal feeds in the food chain
trophic levels
What are carnivores?
animals that only eat other animals
Which organism is a keystone species?
sea stars
The process of predation, commensalism, herbivory, mutualism, parasitism are strategies for organisms to obtain what?
energy, growth and reproduction
This is the simple way to show how energy moves through an Ecosystem, from one organism to the next
food chain
What is the first link in a food chain?
plants or producers
Why are plants called producers?
plants make their own food by photosynthesis
Why are animals called consumers?
they can not make their own food
What is the second link in the food chain?
herbivores
