Animal Diversity


Click here to start

Table of Contents

Animal Diversity

Figure 32.4 A traditional view of animal diversity based on body-plan grades

Figure 32.8 Animal phylogeny based on sequencing of SSU-rRNA

Figure 32.5 Body symmetry

Figure 32.13x Burgess Shale fossils

Figure 32.13 A sample of some of the animals that evolved during the Cambrian explosion

Figure 33.1 Review of animal phylogeny

Phylum Porifera

Figure 33.3 Anatomy of a sponge


Phylum Cnidaria

Figure 33.4 Polyp and medusa forms of cnidarians

Figure 33.5 A cnidocyte of a hydra

Table 33.1 Classes of Phylum Cnidaria

Phylum Ctenophora


Figure 32.6 Body plans of the bilateria

Phylum Platyhelminthes

Table 33.2 Classes of Phylum Platyhelminthes

Figure 33.10 Anatomy of a planarian

Figure 33.12 Anatomy of a tapeworm

Phylum Rotifera

Figure 33.13 A rotifer

Phylum Nematoda

Figure 33.25a Free-living nematode

Lophophorates - several phyla

Figure 33.14 Lophophorates: Bryozoan (left), brachiopod (right)

Phylum Mollusca

Figure 33.16 Basic body plan of mollusks

Table 33.3 Major Classes of Phylum Mollusca

Figure 33.18 The results of torsion in a gastropod

Figure 33.21 Anatomy of a clam

Phylum Annelida

Figure 33.23 Anatomy of an earthworm

Table 33.4 Classes of Phylum Annelida

Phylum Arthropoda

Figure 33.26 External anatomy of an arthropod

Table 33.5 Some Major Arthropod Classes

Figure 33.30b Spider anatomy

Figure 33.33 Anatomy of a grasshopper, an insect

Bilateral Deuterostomes

Figure 32.7 A comparison of early development in protostomes and deuterostomes

Phylum Echinodermata

Figure 33.38 Anatomy of a sea star

Phylum Chordata

Figure 34.2 Chordate characteristics

Figure 34.3 Subphylum Urochordata: a tunicate

Figure 34.4a Subphylum Cephalochordata: lancelet anatomy

Table 33.7 Animal phyla

Author: Zoology


Best experienced with
Microsoft Internet Explorer
Click here to start.

Download presentation source