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PLANTS - Coggle Diagram

- - - - Habitat occasionally drying
        
        470 million years ago
        
        Life on dry land
        
        Challenges
        
        Reproduction
        
        Gametes surrounded in gametangia, a protective jacket surrounding the producing cells.
        
        Pollen grains: pollen contains the the sperm and are carried close to the egg by external forces
        
        Embryophytes
        
        Spore
        
        Structures
        
        Lignin
        
        Resurces
        
        Above ground
        
        2 more items...
        
        Soil
        
        1 more item...
  - - - Stomata
- - - - 425 million years ago
      - Seedless vascular plants
      - Seed plants
        
        360 million years ago
        
        Vascular plants with seeds
        
        Gymnosperms (naked seed)
        
        Angiosperms (flowers and fruits)
- - - - Produces gamets - gametophyte
    - - Produces spores - sporophyte
  - - - -The gametangium in a male gametophyte produces sperm
        -Sperm swim to the egg in the female gametangium trought a film of water
        -The gametangium in a female gametophyte produces an egg
        -A sperm fertilizes the egg, producing a diploid zygote
        -The zygote divides by mitosis - sporophyte
        -The sporophyte produces spores by meiosis in the sporangium
        -A spore divides by mitosis and develops into a gametophyte
    - - -The male gametangium produces sperm
        -Sperm swim to the egg in the female gametangium
        -The female gametangium produces egg
        -Fertilization - Zygote
        -The zygote divides by mitosis and develops into a multicellulare sporophyte
        -The sporophyte grows from the gametophyte
        -The sporophyte produces spores by meiosis
        -The spore divides by mitosis and develops into a multicellular gametophyte
- - - - Separate male and female sporangia and gametophytes
  - - - Produces spores
      - Anthers of flower
- - - - Increase production
        
        Adaptation of plants
        
        Artificial selection
        
        Loosing genes
        
        Modification of landscapes
- - - - Birds
    - - Insects
        
        Pollinators
        
        To maximize the pollen which has been taken
        
        Shape