Human
____________________
are
____________________
because
they
feed
on
their
mother´s
milk
.
Mothers
give
birth
to
live
babies
so
they
are
____________________
.
We
are
____________________
because
we
have
a
backbone
and
an
internal
bone
skeleton
.
Finally
,
we
eat
plants
and
other
animals
,
so
we
are
____________________
.