Vocabulary
Food Chains & Webs
Ecosystem Levels
Random
Populations
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 or chemosynthesis.
What are autotrophs?
100
Two or more organisms of the same species.
What is a population?
100

What is the place where an organism lives & provides the things it needs called?

Habitat

100

If a black bear's birth rate is greater than it's death rate, the black bear's population would increase or decrease?

Increase

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

An organism that can make it's own food is called a...

Producer

200

This represents all connections of energy flow throughout all organisms in a habitat.

What is a food web

200

The largest population that an ecosystem can sustain or support with its resources

Carrying capacity

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 ____________ consumers.
What is tertiary?
300
One individual
What is a organism?
300

This occurs when individuals of different species compete for a resource that limits their growth and survival.

Interspecific competition

300

These are factors that depend on the number of members in a population per unit area.

Density-dependent factors

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 organism that is killed and eaten by another organism.
What is prey?
400

Example of a density-independent factor

Volcano

Flood

Forest Fire

500
A series of events in which one organism eats another and obtains energy. Usually written on one line.
What is a food chain?
500
What is the percentage of energy LOST as it moves from producer to primary consumer to secondary consumer?
What is 90%?
500
Includes all of the living and non-living things in an area.
What is an ecosystem?
500
Study of the interactions of living things and their environment.
What is ecology?
500

If unlimited resources are present, growth will be:

exponential

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