Animalia - Click to edit Master subtitle style Kingdom...

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Unformatted text preview: Click to edit Master subtitle style Kingdom Animalia I History and very simple forms Life in a Cambrian Sea Kingdom Animalia Multicellular Heterotrophic consumers No cell walls Usually have tissues, organs, and organ systems Arose about 900 MYA Include about 2 million described species Include over 30 phyla Major Animal Phyla Porifera (8000) Cnidaria (11,000) Ctenophora (100) Platyhelminthes (15,000) Nemertea (800) Nematoda (20,000) Rotifera (2,000) Mollusca (110,000) Annelida (15,000) Arthropoda (>1,000,000) Echinodermata (6,000) Chordata (50,000) How are animal phyla different? Organizational levels simple to complex Type of symmetry Organization of internal organs Developmental programs for early growth How they dispose of wastes How they move and feed How they reproduce How they support their bodies Body segmentation Chordates Echinoderms Arthropods Annelids Mollusks Rotifers...
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Animalia - Click to edit Master subtitle style Kingdom...

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