Terms in this set (31)
an individual animal, plant, or single-celled life form.
any organism too small to be viewed by the unaided eye.
a class of individuals having some common characteristics or qualities; distinct sort or kind.
an assemblage of interacting populations occupying a given area.
a system, or a group of interconnected elements, formed by the interaction of a community of organisms with their environment.
in a branch of biology, it is the study of ecosystems.
the natural environment of an organism.
the rivalry offered by a competitor
a relation between animals in which one organism captures and feeds on others.
a relationship between two species of organisms in which both benefit from the association.
amount of the same species living in an area
when plants take co2 and turn it into oxygen
make food for other organisms
eat organisms that are different species
an organism that only eats plants
eats both plants and meat
only eats meat
eats animals that are already dead
breaks down dead plants and animals
eats the broken down dead animals
the sequence of what organism eats what
a series of organisms
a closed system is a physical system that doesn't exchange any matter with its surroundings
able to be maintained at a certain rate or level
small changes in an ecosystem
the variety in organisms
not many of the organism left in the wild
a non native species is introduced to an area that replaces some of the original
one that occurs naturally to an area