Metazoa: Animals Kingdom: Animalia.

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Presentation transcript:

Metazoa: Animals Kingdom: Animalia

Animalia

Animalia

Animalia Eukaryotic Multicellular Heterotrophic Motile No cell walls Gametic Life Cycle (diploid dominant) Unique development (Embryology)

Symmetry Radial Symmetry Asymetry Bilateral Symmetry

Gut Incomplete – sac body plan Complete – tube-within-a-tube body plan

Primary Tissues Endoderm – inner surface tissue lining the gut. Mesoderm – internal tissue sandwiched between exterior & interior. Ectoderm – outer surface tissue.

Body Cavities Acoelomate, Pseudocoelomate, Coelomate

Protostomes vs Deuterostomes

Animal Phylogeny (morphological)

Animal Phylogeny (molecular)

Animal Phyla Protostomes: Porifera Cnidaria Platyhelminthes Nematoda Mollusca Annelida Arthropoda Deuterostomes: Echinodermata Chordata

Porifera Sponges

Cnidaria Jellyfish, Hydras

Platyhelminthes Flatworms

Nematoda Smooth Roundworms

Mollusca Mollusks – snails, slugs, clams, octopi

Annelida Segmented Roundworms

Arthropoda Insects, millipedes, centipedes, spiders, ticks, crustaceans, crabs, lobsters, shrimp, scorpions.

Echinodermata Starfish, Sea Urchins

Chordata Eels, fish, amphibians, reptiles, birds, mammals…humans

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