Respiration
is
an
essential
____________________
for
our
bodies
.
Through
this
process
we
receive
the
____________________
that
our
____________________
need
to
obtain
____________________
,
and
expel
carbon
____________________
.
The
respiratory
system
is
responsible
for
____________________
this
____________________
exchange
.
The
respiratory
system
consists
of
the
respiratory
____________________
and
the
____________________
.
It
works
closely
with
the
____________________
system
,
which
transports
____________________
from
the
lungs
to
the
cells
and
____________________
dioxide
from
the
____________________
to
the
____________________
,
so
that
it
can
be
____________________
.
