Friday, November 28, 2008

Cashew Tree


In Brazil their is the worlds largest cashew tree. The tree is in Natal, Brazil.It is a 117 year old cashew tree.The tree covers 8500 square meters of land. This tree grows almost 80,000 fruits from November to January. This tree causes many trafic jams. This tree is eighty times the size of most cashew trees. The cashew tree is harmed by the cars which drive by it. In the ninty's the trees routes started growing onto the highway, allowing only one car to pass at a time. This is when the problem began. Specialist are afraid taht the tree may die if they try to trimm it. The tree has two genetic strange conditions that caused it to grow sideways. A normal cashew tree would grow upwards.The tree brings many tourest to the area. Their is not yet a soulution for the tree which is getting harmed by cars.


I got my information from:





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Monday, November 17, 2008

Symbiotic Relationships

Symbiosis means a close relationship between two organisms in which one organism lives near on or evan inside another organism and at least one organism benefits. There could be more than two organisms in the relationship.There a three types of symbiotic relationships. They are commensalism, when one organism benefits and the other is not harmed. Mutualism is when both organisms in the relationship benefit. The last relationship is parasitism, when one organism benefits and the other is harmed. An example of commensalism is ivy and a tree. An example of mutualism is honey bees and flowers. An example of parasitism is a dog and a flea.There is a fourth symbiosis relationship called as Mimicry, which involves one species imitating another to gain the benefits enjoyed by that species.



i got my information from:

http://www.poliza.de/starship/sciencenew/symbiosis.htm

http://www.cals.ncsu.edu/course/ent591k/symbiosis.html
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