the living part of the earht is called a
bioshphere
Biomes are the largest subunits of the bioshphere
Each Biome is defined in terms of its living organisms and their interactions with their enviroment
An ecosystem contains
a dynamic but
essentially
self-sustaining and
stable community of
organisms interacting
with each other and
their non-living
surroundings
The place within an ecosystem in which an
individual organism lives is called a habitat
A population
is a group of
individuals of
the same
species that
live in a
particular area
at any one
time
A
community
consists of a
group of
populations
of different
interacting
species
living in an
area at one
time
An organisms total
surroundings,
including living,dead,
and non-living
components, make up
its enviroment
Enviromental
factors that
result from the
activities of
living
organisms are
called biotic
factors
A typical community has;
Autotrophs which manufacture their
own food
herbivores that eat autotrophs
Secondary consumers that eat herbivores
tertiary consumers that eat secondary consumers
Decomposers that obtain nutrients by
breaking down remains of dead organisims
Abiotic factors include
Climatic factors; light, temp.,wind
Edaphic factors; associated with soil such as; texture,pH, organic content