Vocabulary
Food Chains & Webs
Miscellaneous
Community Interactions
Population Dynamics
100
An environment that provides the things an organism needs to live, grow, and reproduce.
What is a habitat?
100

These organisms produce energy through photosynthesis and are always at the bottom of the food pyramid.

What are autotrophs?

100

Two or more organisms of the same species in the same place at the same time

What is a population?

100
A relationship between two species in which one species benefits and the other is neither helped nor harmed.
What is commensalism?
100

Anything that controls the population size in an environment.

What is a limiting factor?

200
Non-living factors in a community are called..
What is abiotic factors?
200
These organisms are herbivores, therefore they are called ______________ consumers.
What is primary?
200

Shows the flow of energy in a food chain or food web

What are arrows?

200
A relationship between two species in which one species benefits and the other is harmed.
What is parasitism?
200

This type of growth tends to level off upon the carrying capacity.

What is logistic growth?

300
Something that only eats plants
What is a herbivore?
300

These organisms are typically at the top of the food chain. They are called ____________ .

What is apex predator?

300

The INDEPENDENT variable goes on what axis of a graph?

What is the X axis?

300
A relationship between two species in which both species benefit.
What is mutualism?
300

The maximum number of organisms that an ecosystem can support

What is carrying capacity?

400
An organism that breaks down wastes and dead organisms.
What is a decomposer?
400
This is a way to show how energy in a food web is allocated. Usually there is a large base and a pointed top.
What is an energy pyramid?
400
Two or populations of species.
What is a community?
400
An interaction in which one organism kills another for food.
What is predation?
400

A species that has a large impact on its environment

What is a keystone species?

500

Shows many interconnected food chains and is a more realistic display of interactions in an ecosystem

What is a food web?

500
What is the percentage of energy LOST as it moves from producer to primary consumer to secondary consumer?
What is 90%?
500

What happens when organisms’ habitat/niche overlap

What is competition?

500
Two or more organisms competing for the same resource.
What is competition?
500

A series of events triggered by the addition or removal of top predators and involving changes to many other organisms in the ecosystem

What is a trophic cascade?

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