Animal Body Plans. Major Body Plan Characteristics of Animals Symmetry Primary Germ Layers Gut Organization Body Cavity Segmentation Skeletal Systems.

Animal Body PlansAnimal Body Plans

Major Body Plan Characteristics of Animals

Major Body Plan Characteristics of Animals

• Symmetry• Primary Germ Layers• Gut Organization• Body Cavity• Segmentation• Skeletal Systems• Circulatory Systems• Appendages• Coloniality

SymmetrySymmetry

• Asymmetry

• Radial Symmetry

• Bilateral Symmetry

• Asymmetry

• Radial Symmetry

• Bilateral Symmetry

Primary Germ LayersPrimary Germ Layers

• None• Diploblastic• Triploblast

• None• Diploblastic• Triploblast

Mesoderm

EctodermEndoderm

gut

The Formation of

Primary Germ Layers

The Formation of

Primary Germ Layers

Germ Layer PatternsGerm Layer Patterns

Ectoderm

Endoderm

gut

Diploblastic

Diploblastic- two germ layersDiploblastic- two germ layersPhylum CnidariaPhylum Cnidaria

Germ Layer PatternsGerm Layer Patterns

acoelomate

Triploblastic: 3 germ layers

Mesoderm

EctodermEndoderm

gut

• No Gut

• Blind Sac Gut

• Complete Gut

Gut OrganizationGut Organization

No GutNo GutSponges

Phylum PoriferaSponges

Phylum Porifera

No GutNo GutSponges

Phylum PoriferaSponges

Phylum Porifera

Blind Sac GutBlind Sac GutPhylum CnidariaPhylum Cnidaria

Complete GutComplete Gut

• Acoelomate

• Eucoelomate

• Pseudocoelomate

Body CavitiesBody Cavities

AcoelomateAcoelomate

EucoelomateEucoelomate

PseudocoelomatePseudocoelomate

SegmentationSegmentation

SegmentationSegmentationCentipede

Phylum ArthropodaCentipede

Phylum Arthropoda

SegmentationSegmentation

HeadThorax

Abdomen

Walking legs

Mouthparts (feeding)

Pincers (defense)

Antennae (sensory reception)

Cephalothorax

LobsterPhylum Arthropoda

LobsterPhylum Arthropoda

Swimming Appendages

SkeletonSkeleton

Hydrostatic SkeletonHydrostatic SkeletonSea Anemone

Phylum CnidariaSea Anemone

Phylum Cnidaria

Hydrostatic Skeleton

Hydrostatic Skeleton

EarthwormPhylum Annelida

EarthwormPhylum Annelida

ExoskeletonExoskeleton

ChitonPhylum Mollusca

ChitonPhylum Mollusca

ExoskeletonExoskeletonStony Coral

Phylum CnidariaStony Coral

Phylum Cnidaria

EndoskeletonsEndoskeletonsVertebrates

Phylum ChordataVertebrates

Phylum Chordata

Circulatory SystemsCirculatory Systems

Circulatory SystemCirculatory System

• None (simple diffusion)

• Body Cavity Circulation

• Closed Circulatory System

• Open Circulatory System

No Circulatory SystemNo Circulatory SystemComb Jelly

Phylum CtenophoraComb Jelly

Phylum Ctenophora

Circulation in a Moon JellyfishCirculation in a Moon JellyfishPhylum CnidariaPhylum Cnidaria

Closed Versus Open Circulatory SystemsClosed Versus Open Circulatory Systems

Nervous SystemsNervous Systems

Types of Nervous SystemsTypes of Nervous Systems

ColonialityColoniality

ColonialityColonialityCoral

Phylum CnidariaCoral

Phylum Cnidaria

ColonialityColonialitySea Fan

Phylum CnidariaSea Fan

Phylum Cnidaria

ColonialityColoniality Man-of-War

Phylum Cnidaria Man-of-War

Phylum Cnidaria

Polymorphism in the Portuguese Man- of-War

Polymorphism in the Portuguese Man- of-War