THE ANIMAL KINGDOM

1
THE ANIMAL KINGDOM BASIC CHARACTERISTICS OF
ANIMALS 1. 2.
3. NINE ANIMAL PHYLA
INVERTEBRATES VERTEBRATES (CORDATES)
(1 phylum)
MULTICELLULAR ORGANISMS
CAPABILITY OF LOCOMOTION
MUST INJEST FOOD
(8 PHYLA)
ALL LACK INTERNAL SKELETON, SOME HAVE EXOSKELTON
OR SHELL
INTERNAL SKELTON MADE OF BONE/ CARTILAGE
2
1. PORIFERA
SIMPLEST ANIMALS
NO TISSUE LAYERS
EXAMPLES SPONGES
3
2. CNIDARIA
HOLLOW BODY
HAVE STINGING CELLS
TWO BODY FORMS MEDUSA
POLYP
EXAMPLES
CORAL, JELLYFISH,
SEA ANEMONE
4
3. PLATYHELMINTHES
EXAMPLES
PLANARIA, FLUKE, TAPEWORM
UNSEGMENTED WORMS
FLAT WORMS
5
4. NEMATODA
UNSEGMENTED WORMS
ROUND WORMS
EXAMPLES HOOKWORMS,
HEARTWORMS
6
5. ANNELIDA
SEGMENTED WORMS
MOST ADVANCED WORMS
EXAMPLES LEECH, EARTHWORMS
7
6. ARTHROPODA
SEGMENTED ANIMALS
EXOSKELETONS MADE OF CHITIN
CLASS CRUSTACEAN - MARINE ORGANISMS
EXAMPLES SHRIMP, LOBSTER,
CRAB, BARNACLE
8
7. MOLLUSCA
SOME HAVE SHELL
UNSEGMENTED, SOFT BODIES
EXAMPLES SNAIL, SCALLOP
9
8. ECHINODERMATA
HAVE A DERMAL SKELETON WITH SPINES PLATES
ONLY LIVE IN MARINE ENVIRONMENT
EXAMPLES SEA URCHIN,
SEASTAR, BRITTLE STAR
10
9. CHORDATA
EXAMPLES FISH, REPTILES,
BIRDS, AMPHIBIANS, MAMMALS
HAVE INTERNAL SKELETON
BACKBONE TO PROTECT SPINAL CORD