Ecosystem Roles
The natural unit of all the interacting living and nonliving things in an area.
Ecosystem
Producers get there energy from what?
The sun
Primary consumers are also known as what?
Herbivores.
The top of the pyramid belongs to what type of consumer?
Tertiary consumer
A close association between two or more organisms of different species.
Symbiosis
What do consumers feed on?
Plants and animals or consumers and producers.
The process producers use to make food in deep-ocean ecosystems.
chemosynthesis
What is a decomposer?
An organism that breaks down dead organic material.
Decomposers are usually what?
Bacteria, fungi, or invertebrate.
The kind of symbiosis where both partners benefit.
Mutualism
Living things that make their own food.
What are producers?
An organism's position in a food chain.
Trophic level
Other organisms in this group are what?
omnivores that feed on producers and primary consumers.
Energy is being decreased by?
10%
A wasp and a tomato hornworm are an example of this kind of symbiosis
Parasitism
Living things that get energy by eating other living things.
What are consumers?
This links together several food chains.
food web
Secondary consumers mainly feed on what?
Primary consumers and herbivores.
Name one limiting factor that affects population size
water, predators, temperature, carrying capacity, territorial behavior, or disease
Name all three varieties of symbiosis.
mutualism, commensalism, and parasitism
Name all five types of consumers.
herbivores, carnivores, omnivores, scavengers, and decomposers
The trophic level with the least amount of energy available to it
Tertiary consumer
Secondary consumers are...
carnivores.
The largest number of any species that an environment can support without harm.
Carrying capacity
These cycles show the changes in the populations of two species over time.
predator-prey cycles