Thursday, February 9, 2012

How are ferns adapted to life on land?

How are ferns adapted to life on land?

How are ferns adapted to life on land?
These are the most well represented of the seedless plants. Most ferns have fronds, compound leaves divided into several leaflets. As the frond develops it uncoils from a structure called a fiddle head. Ferns are homosporus with the leafy plant the sporophyte. The sporangia are located on the under surface of the fronds in areas called sori. Water is necessary for fertilization since the sperm must swim to the archogonium, where fertilization takes place. Rhizoids: root-like structures (not true roots) that consist of single greatly-elongated cells, water and mineral salts are absorbed over the whole structure. Rhizoids anchor the prothallus to the soil.


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