The
____________________
system
is
____________________
and
automatic
.
Since
our
birth
,
you
have
been
____________________
all
the
time
thinking
about
it
.
Through
respiration
our
body
takes
in
____________________
from
the
air
.
Oxygen
is
transported
in
the
____________________
to
all
the
cells
.
In
the
____________________
,
it
is
used
to
generate
____________________
from
____________________
.
Finally
,
the
____________________
____________________
is
eliminated
as
____________________
____________________
.
Respiration
is
the
process
of
gas
____________________
between
____________________
and
____________________
____________________
.
The
respiratory
system
consists
of
the
____________________
____________________
and
the
____________________
.
The
lungs
are
organs
located
on
each
side
of
the
____________________
and
are
responsible
for
____________________
____________________
