O Pulmão do Mundo

Thursday, March 17, 2011

     Até pouco tempo, acreditava-se que a região amazônica era a grande responsável pela manutenção dos níveis de oxigênio da terra, sendo popularmente chamada de ‘'pulmão da Terra’'. Porém, recentes pesquisas descobriram a existência de um novo “pulmão”: as algas marinhas. Apesar de se apresentarem nas cores verdes, azuis, marrons, amarelas e vermelhas, todas as algas possuem clorofila e fazem fotossíntese. Por serem muito numerosas  sua fotossíntese representa a maior parte de oxigênio existente no planeta.





Fonte http://1.bp.blogspot.com/_Zb3SUxO23Ns/R_JhtOzA_hI/A
AAAAAAAApU/VewW1fv6Om4/s400/algas.jpg

6 comments:

Leandro said...

Nossa que show , muito legal

Eduardo, Mg said...

Nossa precisamos mais desses hoje em dia.
Parabens

Otavio ,Sp said...

Bom continuem postando mais coisas

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