Diversity of Organisms and Classification

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Presentation transcript:

Diversity of Organisms and Classification

Take these slides of notes in your Spiral Notebook

Essential Vocabulary DNA Prokaryotic: a cell that lacks a nucleus Eukaryotic: a cell that has a nucleus and other complex structures Feeding Autotrophic: an organism that makes it’s own food from solar energy or chemicals Heterotrophic: an organism that must eat other organisms to obtain it’s energy.

Classification of Organisms All organisms can be classified and named according to this system; based on shared traits and a common origin Kingdom Phylum / Division Class Order Family Genus Species King Phillip Came Over For Green Soup

Five Kingdom System Bacteria Protists Fungi Plants Animals

Finding Order in Diversity Why Classify? To study the diversity of life To organize and name organisms Why give scientific names? Common names are misleading jellyfish silverfish star fish None of these animals are fish! Go to Section:

Bacteria Kingdom Unicellular, microscopic Motile (Move) No nucleus Prokaryotic No chlorophyll Decomposers (Saprophytic) Parasitic E. Coli: food poisoning (deadly) Normally found in intestines Beneficial Lactobacillus: yogurt and cheese

Protist kingdom Unicellular; microscopic Nucleus present Eukaryotic Autotrophic or heterotrophic Classified by how they move Plant like: Phytoplankton Provide 90% of worlds oxygen Animal like: Zooplankton Their remains are used in cleansers such as toothpaste and comet

Fungus kingdom Eukaryotic Non-motile (don’t move) No root, stem and leaf No chlorophyll Decomposers Saprophytic or parasitic Reproduce by forming spores Most are Multicellular: mushrooms, bread mold etc.. Unicellular: yeasts

Plant Kingdom Eukaryotic Non-motile (don’t move) Most plants contains pigments (chlorophyll) for photosynthesis Autotrophic Can be divided into two groups: Non-flowering plants Flowering plants

Animal Kingdom Eukaryotic Divided into two groups according to the presence or absence of backbone: Invertebrates : without backbone Sponges, Cnidarians, Flatworms, Round worms, Mollusks, Segmented Worms, Arthropods, Echinoderms, Vertebrates : with backbone Fish, Amphibians, Reptiles, Birds, Mammals