____________________
happens
when
cells
get
____________________
from
the
air
to
obtain
____________________
and
releases
carbon
dioxide
from
the
body
as
____________________
.
changedDigestionnutrients
____________________
is
when
food
is
____________________
into
the
____________________
that
cells
need
.
wasteCirculationnutrientsoxygencells
____________________
consists
on
moving
____________________
and
____________________
to
the
body's
____________________
,
as
well
as
collecting
____________________
substances
produced
by
cell
activity
.
bodybloodsubstancescellsExcretion
____________________
consists
on
cleaning
the
____________________
by
filtering
the
waste
____________________
produced
by
the
____________________
and
expelling
them
from
the
____________________
.