Kingdom Animalia

Characteristics

Multicellular Eukaryotic with no cell walls Heterotrophs (consumers) Have a nervous system to respond to their environment Locomotion relates to ability to obtain food

Protection and Support Though not all animals have a

skeleton, those that do can be divided into two groups:–Those with an exoskeleton – a

hard, waxy coating on the outside of the body that protects internal organs, provides a framework for support, and a place for muscle attachment.

–Those with an endoskeleton – support framework within the body that protects some organs and a brace for muscles to pull against.

The phyla of the Kingdom Animalia

There are nine phyla in the Kingdom Animalia.

Each phyla contains animals which share many characteristics with each other.

8 of the phyla are considered invertebrates (this means that a they lack a backbone.

The 9th phylum are animals with a backbone.

In the Animal Kingdom there are 9 Phyla

• Porifera

• Cnidaria

• Platyhelminthes

• Nematoda

• Annelida

• Mollusca

• Echinoderm

• Arthropoda

• Chordate

Phylum Porifera Sponges

simplest form of animal life

live in water

Do not move around (sessile)

no symmetry

Pores (holes) all over body

Capable of sexual or asexual reproduction (budding)

I thought all animals moved?

Adult sponges don’t move, but as larvae they do.

The larvae can swim around.

Eventually they attach themselves to the ocean bottom and metamorphose into their adult form.

Phylum Cnidaria or Coelenterata

Live in water

Most have tentacles

catch food with stinging cells

Examples - Jellyfish, Hydra, sea anemones, and corals

Phylum Platyhelminthes

Flatworms Flat, ribbon-like body Live in water or are parasites bilateral symmetry Examples: Planaria eyespots detect light food and waste go in and

out the same opening

Phylum Nematoda Roundworms

–Round, tubular body–small or microscopic –bilateral symmetry–have both a mouth and anus–Live in water or are parasites

Examples:– Hookworm– Trichinella

Phylum Mollusca

Soft bodies Hard Shells Live on land or in water Important food source for humans Phylum Mollusca has three classes

Phylum Mollusca

Class Gastropoda

Or Univalves

–snails and slugs

–may have 1 shell

–stomach-footed - move on stomach

Phylum Mollusca

Class Bivalves

–2 shells hinged together

–clams, oysters,

scallops and mussels

Phylum Mollusca

Class Cephalopods

–squids and octopuses

–internal mantel

Phylum Annelida

– Segemented worms– Body divided into

segments(sections)– Live in water or

underground

– have a nervous and circulatory system eat soil and breakdown organic matter,

wastes provide nutrients to soil

Phylum Echinodermata

Hard, spiny skin Live in salt water Radial symmetry name means ‘spiney skinned’ endoskeleton Examples: seastar, sea urchin, sand dollar and

sea cucumber

Phylum Arthropoda

Body divided into sections/segments Exoskeleton Jointed legs well developed nervous system largest group of organisms on earth Phylum Arthropoda has 5 classes

Phylum Arthropoda

Class – Arachnida no antennae 4 pairs of legs 2 body regions - cephalothorax &

abdomen spiders, scorpions, mites & ticks

Phylum Arthropoda Class Crustacea

Shrimp, lobsters, crabs, barnacles, isopods 5 pairs of legs

~Invertebrate Phylum Arthropoda

Class Insecta no antennae 3 pairs of legs grasshoppers, ants, butterflies, bees

Phylum Arthropoda

Class Diplopoda Millipedes segmented animals Have 2 pairs of legs per segment

Class Chilopods Centipede Segemented animals Have 1 pair of legs per body segment

Phylum Arthropoda

Phylum Chordata-Animals that have a backbone

5 classesFish

Mammals

Reptiles

Amphibians

Birds