NATURAL SCIENCE ACTIVITY
NAME: ___________________________________________
GRADE 7__
CHARACTERISTICS THAT DISTINGUISH THE CLASSES OF VERTEBRATES
The table below lists the major characteristics that distinguish the five classes of vertebrates.
Distinguishing
characetristics of the
classes of vertebrates
FISH
AMPHIBIANS
REPTILES
BIRDS
MAMMALS
Type of fertilization
External
External
Internal
Internal
Internal
Type of body covering
Number and types of
limbs
Cold-blooded or
warm-blooded
Type of reproduction
(lays eggs or give birth
to live young)
Organs used for
breathing