domain eukarya kingdom animalia eukaryotic multicellular nucleus with no cell wall motile at some...

Domain Eukarya

Kingdom Animalia

•Eukaryotic

•Multicellular

•Nucleus with no cell wall

•Motile at some point

•Consumer

Important vocabulary• Symmetry – how organism

is divided Radial – same in all

directions Bilateral – two sides similar• Coelom – body cavity Acoelomate – no coelom Pseudocoelomate – lined on

one side with tissue Eucoelomate – lined on both

sides with tissue• Cephalization - Sense

organs are in one area• Blastopore – early

developmental stage

• Tissue layers - # of tissues (and what it becomes)

Endoderm -inner Ectoderm- outer Mesoderm -middle• Gut – digestive organs Gastrovascular cavity complete (mouth to anus) • Segmentation – is body in

repeated sections• Cleavage Spiral - Protostome Radial - Deuterostome

Symmetry

Ceolom

Tissue Layers

Gut

Cleavage

Blastopore

Segmentation

Cephalization

Phylum to Know• Porifera – sponges• Cnidaria – sea anemones, corals, jellyfish• Platyhelminthes- flatworms• Nematoda – roundworms• Annelida – segmented worms (earthworms)• Mollusca – snails, shellfish, slugs• Arthropoda – insects, crustaceans, spiders• Echinodermata – sea urchins, sea cucumbers• Chordata - fish, amphibians, birds, us• Others mentioned – Ctenophores, Rotifers,

Hemichordata

Phylum Porifera - Sponges

• Multicellular• Asymmetrical – no

symmetry• No body tissues

• Skeleton of CaCO3 or silica

• Filter feeder• Hermaphroditic• Can reproduce asexually

by splitting or budding

Phylum Cnidaria – Corals, jellyfish• Radial symmetry• 2 tissue layers (endo,

ectoderm, mesoglea)• Gastrointestinal sac• Hermaphroditic• Can reproduce

asexually by budding or splitting (coral)

• Stinging cells (Nematocyst)

Phylum Platyhelminthes - flatworms• Bilateral symmetry• 3 tissue layers• Acoelomate• Gastrointestinal sac• Some cephalization• Can reproduce

asexually by fission (splitting)

Phylum Nematoda - roundworms• Bilateral symmetry• 3 tissue layers• Psuedocoelomates• True gut – mouth to

anus• Most separate sexes

Phylum Annelida – segmented worms• Bilateral symmetry• 3 tissue layers• Euceolomate• Complete gut – mouth

to anus• Cephalization• Segmented• Spiral cleavage –

Protostome• Blastopore forms

mouth

Phylum Mollusca – Clams, snails, squid• Bilateral symmetry• 3 tissue layers• Euceolomate• Complete gut – mouth to anus• Cephalization• Segmented• Spiral cleavage –

Protostome• Blastopore forms

mouth• Shelled- 1 or 2 (some

lost or internal)

Phylum Arthropoda – Insects, spiders, crabs

• Bilateral symmetry• 3 tissue layers• Euceolomate• Complete gut – mouth

to anus• Cephalization• Segmented• Spiral cleavage –

Protostome• Blastopore forms

mouth• Exoskeleton of chitin

Phylum Echinodermata - sea star, sea urchin

• Bilateral symmetry• 3 tissue layers• Euceolomate• Complete gut – mouth to

anus• Cephalization• Segmented• Radial cleavage –

Dueterostome• Blastopore forms anus• Pentamerous symmetry as

adult• Asexual and sexual

reproduction

Phylum Chordata – lancelets, sea squirts, us• Bilateral symmetry• 3 tissue layers• Euceolomate• Complete gut – mouth to anus• Cephalization• Segmented• Radial cleavage –

Dueterostome• Blastopore forms anus• Notochord – spine, skull• Dorsal hollow nerve chord –

spinal cord, brain• Pharyngeal gill slits - pharynx• Post-anal tail - coccyx

Chordate sub phylum• Urochordata• Sea squirt or

tunicate• Sessile as

adult

• Cephalochordata• Lancelet

• Vertebrata• Includes 6/7

classes• Agnatha• Chondrichtyes• Osteicthyes• Amphibia• Reptilia• Aves• Mammalia

Class Agnatha – jawless fish

• Skull• Lack jaws Hagfish Lampreys

Class Chondricthyes – cartilaginous fish

• Cartilaginous skeleton• Jaw sharks skates rays

Class Osteicthyes – bony fish• Skeleton of bone Tuna Salmon All other

familiar fish

Class Amphibia – Salamanders, toads, frogs, caecilians

• Four walking legs• Water as young,

land as adult• Needs water for eggs• Moist skin

Class Reptilia – Snakes, lizards, turtles, tortoise, crocidilians, tuataras

• Scaly skin• Lungs• Claws• AMNIOTIC EGG

Amniotic egg

Class Aves - birds• Feathers• Endotherm – steady

internal body temp.• Wings• Toothless beak

Class Mammalia – horses, us

• Fur• Mammary glands –

milk• 4 chambered heart• Endotherm Monotreme – egg

laying Marsupial – pouched Placental – live birth

with placenta

Which is yours?