Complete
the
information
.
A
is
the
place
where
each
of
the
animal
species
lives
.
This
place
has
the
right
conditions
for
that
animal
to
live
there
.
Animals
can
live
on
land
or
underwater
.
Complete
the
information
.
Animals
that
live
in
the
terrestrial
ecosystem
can
breathe
from
our
air
.
They
live
on
the
ground
,
in
places
like
forests
,
grasslands
and
deserts
,
among
others
.
Animals
that
can
fly
also
live
in
the
terrestrial
habitat
,
since
they
rest
and
make
their
nests
in
the
terrestrial
area
.
Complete
the
information
.
The
is
close
to
the
polar
zones
,
therefore
it
has
an
extremely
cold
climate
.
It
is
so
cold
that
the
trees
hardly
survive
.
The
soil
remains
frozen
for
much
of
the
year
.
In
the
summer
it
thaws
,
but
only
a
few
centimeters
.
Complete
the
information
.
The
simplest
definition
of
an
ecosystem
would
be
that
of
a
highly
complex
biological
system
that
includes
each
and
every
one
of
the
different
interactions
that
take
place
,
both
between
living
things
and
between
them
and
the
in
which
they
are
found
.
Complete
the
information
.
Mixed
ecosystems
:
These
can
be
constituted
by
the
presence
of
land
and
water
,
or
land
and
air
(
air
-
ground
ecosystems
)
.
The
main
types
of
ecosystems
that
exist
in
nature
are
:
?
Wetlands
.
?
Mangroves
.
?
Marshes
.
?
Costs
.
Complete
the
information
.
Artificial
ecosystems
are
increasingly
and
rapidly
,
various
artificial
ecosystems
exist
throughout
the
planet
.
For
this
reason
,
we
can
also
refer
to
artificial
ecosystems
by
the
name
of
or
humanized
ecosystems
,
as
well
as
non
-
natural
ecosystems
.
Complete
the
information
.
The
main
types
of
ecosystems
are
:
?
Urban
ecosystems
.
?
Agricultural
or
agricultural
ecosystems
.
?
Dam
or
reservoir
ecosystems
.
Complete
the
information
.
There
are
three
types
of
biological
adaptation
to
the
environment
in
which
one
lives
:
Morphological
or
structural
,
or
functional
and
Ethological
or
behavioral
.
Complete
the
information
.
Different
inter
-
specific
relationships
are
depredation
?
parasitism
?
?
symbiosis
?
food
chains
?
food
networks
?
the
balance
between
living
beings
.
Complete
the
information
.
Physical
abiotic
factors
:
They
are
those
related
to
the
forces
acting
on
ecosystems
on
Earth
,
for
example
:
sunlight
,
temperature
,
atmospheric
pressure
,
climate
,
relief
and
Biotic
factors
are
generally
organized
in
,
that
is
,
groups
of
living
things
of
the
same
type
that
share
a
specific
habitat
.
Complete
the
information
.
Sound
is
any
phenomenon
that
involves
the
propagation
of
mechanical
waves
,
generally
through
a
fluid
that
is
generating
the
movement
of
a
body
.
Complete
the
information
.
The
tone
or
height
is
the
quality
that
allows
us
to
distinguish
between
a
high
or
high
sound
and
a
low
or
high
sound
.
For
a
pure
sound
,
the
tone
is
mainly
determined
by
the
,
although
it
can
also
change
with
the
pressure
and
the
envelope
.
Complete
the
information
.
The
timbre
of
a
sound
is
the
quality
by
virtue
of
which
we
can
distinguish
two
sounds
of
equal
frequency
and
intensity
emitted
by
two
different
sound
sources
.
The
is
due
to
the
fact
that
generally
a
sound
is
not
pure
and
depends
mainly
on
the
spectrum
.
But
it
also
depends
greatly
on
the
envelope
and
the
frequency
.
Complete
the
information
.
The
physical
duration
of
a
and
the
perceived
one
are
closely
related
although
they
are
not
exactly
the
same
.
The
perceived
duration
is
that
time
interval
in
which
the
sound
persists
without
discontinuity
.
Complete
the
information
.
Heat
is
a
form
of
energy
exchange
between
the
system
and
its
surroundings
due
to
a
temperature
difference
.
systems
do
not
have
heat
,
they
have
energy
,
and
one
of
the
ways
they
exchange
this
energy
is
heat
.
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