Kamis, 02 Februari 2012

The Reproduction of Moss and Fern

The Reproduction of Moss

- The spore which falls in the right place 
  will grow and form protonema.
- Then protonema grow to be mosses
- After maturity,a moss will produce a male 
  reproduction organ called antheridium in wich 
  there are male sex cells  (spermatozoid),
  and female sex organ
  called archegonium in which there are 
  eggs cells organs (ovum).
- Then spermatozoid fertilizes the ovum and 
  grows to be zygote
- Zygote then grows to be sporogonium
- Sporogonium produces spores
- The process continues to form a life cycle





The Reproduction of Fern

- The sporangium in sorus will break,
  and the spore comes out
- The spore which falls in the right place 
  will grow and form a prothalium
- On the lower surface of prothalium,
  there grows an antheridium which produces 
  spermatozoid and archegonium which produces ovum
- The spermatozoid fertilized the ovum 
  and grow to be a zygote
- The zygote grows to be a young fern
  which has roots and a stem.The young fern 
  then develoves into a mature fern which 
  produces spores again.














 

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