Objectives

• Describe characteristics common to animals

• Describe the characteristics of 6 major animal phyla

• Identify on sight members of 6 major animal phyla

• Define invertebrate, chordate, vertebrate

6 characteristics of animals

• Multicellular

• Heterotrophs

• Mostly sexual reproduction

• No cell wall

• Motile at some stage

• Complex organ structures to respond to environment quickly

TaxonomyKingdoms: Sub-groups:

MoneraProtistaFungiPlantae

TaxonomyKingdoms: Sub-groups:

MoneraProtistaFungiPlantae Mosses

FernsConifersFlowering

TaxonomyKingdoms: Sub-groups:

MoneraProtistaFungiPlantae Mosses

FernsConifersFlowering

Animalia InvertebratesVertebrates

Classification• 27 Phyla

• Grouped as:– Invertebrates: NO backbone/vertebral column– Vertebrates: backbone/vertebral column

• We will cover:– 6 phyla

• 5 invertebrate phyla

• Phylum Chordata (The Vertebrates)

Classification

Kingdom Phylum

Animalia Sponges

Segmented worms

Molluscs

Arthropods

Echinoderms

Chordates

Classification: Invertebrate

Kingdom Phylum

Animalia Sponges

Segmented worms

Molluscs

Arthropods

Echinoderms

Chordates

Classification: Vertebrate

Kingdom Phylum

Animalia Sponges

Segmented worms

Molluscs

Arthropods

Echinoderms

Chordates

Classification

Kingdom Phylum

Animalia Sponges

Segmented worms

Molluscs

Arthropods

Echinoderms

Chordates

• Sac-like body • Cellular level of

organization• Filter feeder• Simple nervous

system• CAN regenerate

Sponges

Classification

Domain Kingdom Phylum

Eukarya Animalia Sponges

Segmented Worms

Molluscs

Arthropods

Echinoderms

Chordates

Annelids• Segmented

• Hydrostatic skeleton

• Brain + solid nerve cord

• Three main types– Marine Worms

• 1 Clam worms (predators)

• 2 Fan worms (prey)

– Earthworms

– Leeches

Annelids

Classification

Domain Kingdom Phylum

Eukarya Animalia Sponges

Segmented worms

Molluscs

Arthropods

Echinoderms

Chordates

Molluscs

Molluscs

• Body parts– Foot– Mantle– (most have shells)

Classification

Domain Kingdom Phylum

Eukarya Animalia Sponges

Segmented worms

Molluscs

Arthropods

Echinoderms

Chordates

Arthropods• 3 types:

– 1 Crustaceans– 2 Insects– 3 Arachnids

• Major characteristics:– 1 Exoskeleton (chitin)

• Protection• Attachment for muscles• Movement• Prevent drying out

– 2 Segmented bodies– 3 Well developed brains and nervous systems

Arthropods: Crustaceans

Arthropods: Insects

Arthropods: Arachnids

Classification

Domain Kingdom Phylum

Eukarya Animalia Sponges

Segmented worms

Molluscs

Arthropods

Echinoderms

Chordates

Echinoderms

• Marine animals

• Internal skeleton

• Spines

• Radially symmetric

Echinoderms

Classification

Domain Kingdom Phylum

Eukarya Animalia Sponges

Segmented worms

Molluscs

Arthropods

Echinoderms

Chordates

Chordates• Hollow nerve cord in the back

• Tail

• Internal skeleton (mostly bone)

• Developed brains

Phylum Chordata