Ecology
is
the
study
of
the
____________________
between
____________________
factors
of
the
environment
,
such
as
____________________
,
air
and
water
,
and
____________________
factors
,
such
as
plants
,
animals
and
____________________
.
An
____________________
is
a
living
thing
and
many
of
the
same
form
a
____________________
.
Many
populations
make
up
a
____________________
which
interact
with
abiotic
factors
in
an
area
to
form
an
____________________
.
A
____________________
is
a
name
for
a
group
of
ecosystems
which
share
similar
____________________
and
plant
and
animal
____________________
.
There
are
a
number
of
biomes
but
they
are
____________________
into
two
big
categories
:
____________________
biomes
,
where
there
is
water
,
and
____________________
biomes
,
where
there
is
land
.
The
first
category
is
divided
into
two
smaller
ones
:
the
____________________
biome
,
where
there
are
ecosystems
such
as
lakes
and
rivers
,
and
the
____________________
biome
,
where
the
water
contains
a
higher
level
of
____________________
.
Terrestrial
biomes
include
the
____________________
,
which
is
the
hottest
,
and
the
____________________
,
which
is
the
coldest
biome
on
our
planet
.
