Animal)

(Multicellular)

collagen

Animal)

1. (Level of cell organization)

2. Symmetry)

3. Body cavity or coelom)

4.

5. Digestive tract)

6. Segmentation)

1.

(Level of cell organization)

1.1 No true tissue)

1.2 True tissue)

1.2.1 2 Diploblastica)

2. Symmetry)

2.1 Asymmetry)

2.2 Radial symmetry)

2.3 Bilateral symmetry)

3.

Body cavity or coelom)

3.1 No body cavity or

acoelom) Body covering(from ectoderm)

Tissue-filled region(from mesoderm)

Digestive tract(from endoderm)

Acoelomate: Acoelomates such as flatworms lack a body cavity between the digestive tract and outer body wall.

3.2 Pseudocoelom)

PseudocoelomMuscle layer(from mesoderm)

Body covering(from ectoderm)

Digestive tract(from endoderm)

3.3 Eucoelom or coelom)

Figure 32.8a

Coelom

Body covering(from ectoderm)

Digestive tract(from endoderm)

Tissue layerlining coelomand suspendinginternal organs(from mesoderm)

Coelomate. Coelomates such as annelids have a true coelom, a body cavity completely lined by tissue derived from mesoderm.

4.

4.1 (Protostomia)

4.2 (Deuterostomia)

Anus

Anus

Mouth

Mouth

Mouth developsfrom blastopore

Anus developsfrom blastopore

Digestive tube

5. Digestive tract)

5.1

(Incomplete digestive tract)

5.2

Complete digestive tract)

6. Segmentation)

6.1

Superficial

segmentation)

6.2

Animal KingdomPhylum Porifera

Phylum Cnidaria

3 Phylum Platyhelminthes4 Phylum Nematoda

5 Phylum Mollusca 6Phylum Annelida

7 Phylum Arthropoda

8 Phylum Echinodermata

•

•

•

•

•

•

2

3 Class 1. Class

Calcarea2. Class

Hexactinellida3. Class

Demospongiae

•

• (radial symmetry)

•

•Nematocyst)

•

•Nerve net)

•

• 2

-Polyp)

-Medusa)

•

protonephridia)

•

•

•

hermaphrodite)

1.Class Turbellaria

2.Class Trematoda

3.Class Cestoda

Nematoda

•

•

• Bilateral symmetry)

•Pseudocoelomate animal)

•

•

•

• Nerve ring)

•

Longitudinal muscle)

•

•

31.

2.

3.

•

•

• coelom) •

•

•nephridium)

5 Class 1. Class Gastropoda

2. Class PolyPlacophora

3. Class Bivalvia

4. Class Scaphopoda

5. Class Cephalopoda

•

•

•

•

•

nephridia) 1

• hermaphrodite)

•

•

•

1. Class Oligochaeta

2. Class Polychaeta

3. Class Hirudinea

•

•

• 3

•3

•

• (Molting)

•

• Open circutory sysytem)

•

• 1

1

•

•

Trilobita

Xiphosura

Crustacea

Insecta

Arachnida

Chilopoda

Diplopoda

1 2 3 4 5

6 7 8 9 101

112

13

14

15Jigsaw

•

• 3

•

•

• water vascular system)

•

•

Class Ophiuroidea

•

Class Ophiuroidea

Class Holothuroidea

Class Crinoidea

• notochord

amphioxus

•

•

•

Protochordata

• Sub-Phylum Urochordata Notochord

Notochord

• Sub-Phylum Cephalochordata Notochord

Amphioxus)

Sub-Phylum Vetebrata

• Notochord

Class Cyclostomata Class Agnatha

Class Chondricthyes

Class Ostheicthyes

Class Amphibian

Class Reptilia

Class Aves Feather)

Class Mammalia

Mammal) Hair)