Kingdom Animalia - Kingdom Animalia Kingdom Animalia...

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Kingdom Animalia Kingdom Animalia Multicellular eukaryotes Specialized cells o Tissues in most Heterotrophic o Internal digestion Locomotion Reproduction usually sexual Invertabrates vs. vertabrates 33-35 phyla in kingdom Only one contains animals with a backbone o <5% of all animals Invertabrate Diversity Total species = 1.7 million Total inverts = 1.3 million 76% of described species are invertebrate animals o 60% of all described species and 77% of all animals are insects Phylum Porifera – sponges – about 8300 species All aquatic o Mostly marine o Some freshwater Cells not organized into tissues o Division of labor Many brightly colored
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Mostly asymmetrical o Flat encrusting growths o Large cups, fans, or vases No nervous system Sexual and asexual reproduction Body plan o Ostia – incurrent pores o Osculum – excurrent opening o Choanocytes – flagellate collar cells o Mesenchyme cells – amoeboid cells in matrix multiple functions
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This note was uploaded on 04/29/2008 for the course BIO 162 taught by Professor Neudorf during the Spring '08 term at Sam Houston State University.

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Kingdom Animalia - Kingdom Animalia Kingdom Animalia...

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