Many different populations that share a habitat have a ____________________ or role.

A single organism in an environment

Individuals of the SAME KIND living in the same environment make up a

A community its physical environment make up ___________________

All the populations of organisms living together in an environment make up a

A place where a population in an ecosystem lives

Shows the interactions among many different food chains in a single ecosystem

An organism that makes its own food

Consumer that breaks down the tissues of dead organisms

Shows the amount of energy available to pass from one level of a food chain to the next

An organism in a community that must eat to get the energy it needs

The way in which the organisms in an ecosystem interact with one another according to what they eat

A contest among organisms for resources

a long-term relationship between different kinds of organisms

action that the organism sees from and copies from their parents

a natural behavior that an organism is born with

When one organism is harmed and the other benefits it is called

A population that begins to decline is listed as

A population that is likely to die out unless steps are taken to save it is listed as

When the last individual of a population dies, that kind of organism becomes ______________ (Example: The passenger pigeon)

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