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The Animal Kingdom II

The Animal Kingdom II. (Lions & Tigers & Bears) Oh my!. Defining Characteristics. (multicellular eukaryotes) Nutrition by ingestion No cell walls. Most animals are. INVERTEBRATES!! (no internal skeleton). Remember Taxons:. Domain Kingdom Phylum Class Order Family Genus Species.

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The Animal Kingdom II

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  1. The Animal Kingdom II (Lions & Tigers & Bears)Oh my!

  2. Defining Characteristics • (multicellular eukaryotes) • Nutrition by ingestion • No cell walls

  3. Most animals are • INVERTEBRATES!!(no internal skeleton)

  4. Remember Taxons: • Domain • Kingdom • Phylum • Class • Order • Family • Genus • Species

  5. Animal Kingdom • Phylum Chordata has 5 classes: • Fish • Amphibians • Reptiles • Birds • Mammals

  6. Evolutionary Obstacles Adapting from aquatic  terrestrial life:Two important “obstacles” for animals: • Obtaining oxygen for aerobic cellular respiration (in order to release energy from food!) • Sexual Reproduction without water

  7. Evolutionary Trends ** Reproduction Strategy ** • From: More offspring; low or no level of parental care • To: Fewer offspring; high level of parental care

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