Mammals
have
____________________
.
Baby
mammals
are
born
____________________
.
They
drink
their
mother's
____________________
.
Birds
are
oviparous
,
they
are
born
from
____________________
.
Birds
have
____________________
.
They
have
____________________
to
fly
.
Reptiles
are
vertebrates
.
They
lay
____________________
and
they
have
____________________
.
Some
have
____________________
legs
,
some
don't
have
legs
and
some
have
a
shell
.
Amphibians
have
a
____________________
skin
.
They
live
in
the
____________________
and
on
land
.
Amphibians
lay
____________________
in
the
water
.
