Créditos http://www.sobiologia.com.br/conteudos/Ecologia/abioticosebioticos.php http://educar.sc.usp.br/ciencias/ecologia/ecologia.html http://www.biomania.com.br/bio/conteudo.asp?cod=1266 Imagens http://wellgama.zip.net/images/fundo-do-mar-montado-2.jpg http://queropegartodas.com/wp-content/uploads/2011/01/duvida.jpg http://www.coral.org/files/images/800px-Nwhi_-_French_Frigate_Shoals_reef_-_many_fish.jpg http://www.natanaeloliveira.com.br/wp-content/uploads/2011/02/site_em_construcao_.jpg