Grade 6- Science

1. VERTEBRATES AND
INVERTEBRATES ANIMALS

2. WHAT CAN YOU SAY ABOUT THIS?

3. INVERTEBRATES
� Invertebrates can be simply identified as animals that
do not have a backbone.
� Invertebrates are the animals which mainly lack a
skeletal system. This means most of them do not possess
a rigid body structure and as a result, cannot grow very
large.
� All invertebrates do not have a spinal cord or vertebral
column, instead, most of them possess an exoskeleton
that encompasses the entire body.

4. � Exoskeleton- is an external skeleton that supports and protects an animal's
body.
� Do not possess lungs since they respire through their skin.
� Since they cannot produce their own food, Invertebrates are
heterotrophic.
� Heterotrophic- an organism that eats other plants or animals for energy
and nutrients.
� Reproduction occurs through fission.
� Fission- The body of the parent splits into two distinct pieces.

5. TYPES OF INVERTEBRATES
� Insects
� Spiders
� Worms
� Slaters
� Land hoppers
� Centipedes
� Millipedes
� Velvet worms

6. � Sea stars and sea
urchins
� Anemones and corals
� Snails and slugs
� Sponges
� Bluebottles and jellies
� Crabs, prawns,
crayfish & lobsters

7. VERTEBRATES
� Vertebrates are animals with backbones, or
spines, which surround and protect the spinal
cord.
� The backbone runs from the head to the tail
along the dorsal (top) side of the body.
� The vertebral column is the core of the
endoskeleton.
� Endoskeleton- skeleton found within the interior
of the body; it provides structural support and
protection for the internal organs and tissues of
an organism.

8. Classification of Vertebrates
� Any member of the group of vertebrate
animals in which the young are nourished with
milk from special mammary glands of the
mother.
MAMMALS

9. Classification of Vertebrates
� This class of organisms are characterized by
feathers, toothless beaks and a high metabolic
rate. Furthermore, members of class Aves lay
hard-shelled eggs.
BIRDS

10. Classification of Vertebrates
� Reptiles include tetrapod such as snakes,
crocodiles, tuataras and turtles. The
characteristic feature of reptiles is that they
are ectothermic in nature.
REPTILES

11. Classification of Vertebrates
� Amphibians include ectothermic tetrapod
such as frogs toads and salamanders. The
distinguishing feature that separates
amphibians from reptiles is their breeding
behavior. Most amphibians need a body of
water to breed as their eggs are shell-less.
AMPHIBIANS

12. Classification of Vertebrates
� This class of fishes is characterized by their
skeleton which is composed primarily of bone
rather than cartilage (such as sharks).
FISHES

13. �WHAT IS THE DIFFERECE BETWEEN INVERTEBRATES
AND VERTEBRATES?
�WHAT ARE THE CLASSIFICATIONS OF
INVERTEBRATES?
�WHAT ARE THE CLASSIFICATIONS OF
VERTEBRATES?

14. THANK YOU!