'Phylum nematoda roundworms' presentation slideshows

Invertebrate Overview

Invertebrate Overview. Body Symmetry. Radial Symmetry-body parts that repeat around center body-Cnidaria and Echinodermata Bilateral Symmetry-imaginary plane divides animal into to equal parts-Platylhelminthes ,Nematoda,Annelida,Mollusks,Arthropoda Asymmetrical-no front back or sides-Porifera.

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Chapter 23

Chapter 23. Animals: The Invertebrates. Characteristics of Animals. Multicellular . Cells are usually arranged in organs or organ systems Heterotrophs Require oxygen to perform aerobic respiration. Most are motile at some point in the life cycle

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Phylum Porifera Chapter 26

Phylum Porifera Chapter 26. General Characteristics. No mouth, gut, specialized tissues or organ systems Multicellular Kept rigid through deposits of calcium carbonate, silica or spongin Reproduce asexually through budding and/or sexually through sperm and egg

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Nematodes, Arthropods

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Kingdom Animalia Characteristics

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