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Kingdom Animalia. Animal Charactersitics Dermal Layers Body Plans & Symmetry. What is an animal?. Name an animal. Any animal. Consider the list we’ve created. What do they ALL have in common?. What is an animal?. Heterotrophic Digest food inside the body
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Kingdom Animalia Animal Charactersitics Dermal Layers Body Plans & Symmetry
What is an animal? • Name an animal. Any animal. • Consider the list we’ve created. • What do they ALL have in common?
What is an animal? • Heterotrophic • Digest food inside the body • Cells: eukaryotic, specialized, multicellular • Typically display Locomotion • MOST reproduce sexually • NO CELL WALLS
Animal Development http://www.esu.edu/~milewski/intro_biol_two/lab_animal_development/32_02EmbryonicDev_3-L.jpg
Animal Development • Sperm + egg (gametes) = fertilization • Zygote (initial diploid cell) • Blastula (hollow ball of cells) • Gastrula (cells on one side fold inward; 2-layers with an opening at one end)
Animal Development • Endoderm: inner cells (digestive tract) • Ectoderm: outer cells (skin & nerves) • Mesoderm: “middle layer” (muscles, circulatory, excretory, respiratory) • Protostome (mouth first) • Deuterostome (anus first)
Body Plans (Symmetry) http://userwww.sfsu.edu/biol240/labs/lab_16animalbodyplan/pages/bodyplan.html
Body Plans (Cavities) http://userwww.sfsu.edu/biol240/labs/lab_16animalbodyplan/pages/bodyplan.html
Animal Diversity • There are many phyla of animals, generally divided into two groups: • Invertebrates (phyla such as: porifera, cnidaria, planaria, arthropoda, etc.) – NO BACKBONE • Vertebrates (phyla Chordata) – HAVE Backbones
What do you know about invertebrates? List everything that comes to mind!
What questions do you have about invertebrates? List 5 questions you would like to ask about invertebrates.