Animal
kingdom
is
divided
into
two
main
groups
,
____________________
and
____________________
.
____________________
are
all
animals
that
have
a
backbone
.
____________________
doesn't
have
backbone
.
The
5
groups
are
:
____________________
,
____________________
,
____________________
,
____________________
,
and
____________________
____________________
feed
on
milk
.
____________________
are
the
only
group
that
have
feathers
.
The
only
group
that
can
live
on
water
is
the
____________________
group
.
Snakes
are
examples
of
____________________
.
____________________
are
the
only
group
that
can
live
on
land
and
on
water
.
