CHARACTERISTICS OF AN ANIMAL

EUKARYOTE- Organism with membrane -bound nucleus

MULTICELLULAR- Organism composed of many cells

CHARACTERISTICS OF AN ANIMAL

HETEROTROPH - Organism that can’t make their own food

- Absence of chloroplast - No cell wall

MAJOR GROUPS OF ANIMALS

Vertebrates - Animals with backbones Invertebrates - Animals w/out backbones

CLASSIFICATION• PORIFERA (PORE-BEARING ANIMALS)• CNIDARIA (STINGING ANIMALS)• PLATYHELMINTHES (FLATWORMS)• NEMATODA (ROUND WORMS)• ANNELIDA (SEGMENTED WORMS)

CLASSIFICATION• MOLLUSKA

(SOFT-BODIED ANIMALS)• ECHINODERMATA (SPINY SKIN ANIMALS)• ARTHROPODA (JOINTED LEG ANIMALS)• CHORDATA (with NOTOCHORD)

CHARACTERISTICS OF PORIFERS

Have pores Have skeleton of silicon or calcium containing spicules

Have body cavity Have osculum, large opening at the top of the sponge body

Glass sponge

Cloud sponges

Basket sponges

Vase sponge

Yellow tube sponge

Tube sponge

Basket sponge

Tube sponge

PHYLUM PORIFERA

CHARACTERISTICS OF CNIDARIANS

Are hollow-bodied animals

Have nematocysts, specialized stinging cells

Have tentacles

hydra

Jelly fish

corals

corals

Jelly fish

Portuguese man of war

Lizard island coral

PHYLUM CNIDARIA

CHARACTERISTICS OF FLATWORMS

Are long ribbon-shaped worms

Are free living while others are parasitic

Live in freshwater or sea water

flukes

planaria

tapeworm

PHYLUM PLATYHELMINTHES

CHARACTERISTICS OF NEMATODES

Are long, slender, smooth-bodied worms

Have mouth and anus Live in soil and some are parasitic

PHYLUM NEMATODA

hookworm

pinworms

ascaris

CHARACTERISTICS OF ANNELIDS

Have segmented bodies

Most are burrowers in the sand

Some are hermaphrodite

PHYLUM ANNELIDA

earthworm

leech

Marine annelid

CHARACTERISTICS OF MOLLUSKS

Are soft-bodied animals Have protective shells Have a mantle which secretes the shells

PHYLUM MOLLUSKA

snails

squid

oysters octopus

slugs

cuttlefish

CHARACTERISTICS OF ECHINODERMS

Have hard bodies covered with spines

Have no head nor tails and have no left nor right

Have mouth and anus at its top and bottom ends

PHYLUM ECHINODERMATA

Star fish

Sea cucumber

Sea urchin

Sea urchinSea star

Sea urchin

CHARACTERISTICS OF ARTHROPODS

Have jointed legs Have exoskeleton Have segmented bodies with 2 or 3 regions

Most have antennae

PHYLUM ARTHROPODA

Centipede- class Chilopoda

Crabs- class Crustacea

Millipede- class Diplopoda

Scorpion- class Arachnida

Spider

grasshopper

Class Insecta

CHARACTERISTICS OF CHORDATES

Have a notochord at certain stage of their life cycle

Have gill slits and a tail at a stage in their development

PHYLUM CHORDATA

crocodile

Class Agnatha Class Chondrichthyes

raysharks

Class Reptilia

Sea horse milkfish

Class Osteichthyes

snakes

Lamprey

PHYLUM CHORDATA

Tomato frog toad

kangaroo

Class Amphibia

dolphin lionPregnant woman

Class Aves

Class Mammalia

parrot