Plants
        What makes a plant a plant?
    Plants are Eukaryotic.
   Plants have cell walls.
   Plants make their own energy 
   through photosynthesis
   What other characteristics can you 
   recall?
        What plants need to 
                    survive
    1. Sunlight
    2. Water
    3. CO  & Oxygen
    3. CO  & Oxygen
         2
          2
   4. Nutrient and water movement
        Plant Distribution
                           Flowering
        250,000            Plants
                           235,000
        200,000            Mosses
        150,000            15,600
        100,000
                           Ferns
         50,000            11,000
            0
                 1st Qtr   Cone
                           Bearing
                           Plants 760
                                 Types of plants
  I.     Seedless Nonvascular Plants (Bryophytes):
              - lack tissue to move water and sap 
         throughout the plant
              - small, short plants that most live in 
         moist environment
              (mosses, liverworts, hornworts)
      Types of plants (cont’d)
 II. Vascular Plants (3 Subdivisions):
   1. Seedless Vascular (ferns, horsetails, 
   clubmosses)
    - sperm travels in water to reach egg
   2. Two Seed Bearing Vascular 
                    -Gymnosperms (Naked Seeds)
   (Conifers, cycads, ginkos)
    - Male cones release pollen in the spring, which is 
   spread by the wind
    - Female cones release sticky fluid to capture pollen 
    - Overtime, pollen burrows into female cone’s ovule to 
   reach & fertilize egg
    - Eventually cone falls and turns into conifer tree