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Algele

QuestionAnswer
Alcătuire Corpul algelor se numește tal. -conțin clorofilă(ca plantele), deci pot face fotosinteză Pot fi unicelulare (alcătuite dintr-o singură celula) sau pluricelulare(din mai multe celule).
Tipuri de alge -verzi -brune(maro) -roșii -albaste
Unde trăiesc? -cele mai multe, în mări și oceane - și în ape dulci sau în locuri umede(ziduri)
Verzeala zidurilor -algă unicelulară -se hrănește prin fotosinteză - își produce singură hrana(autotrof)
Mătasea broaștei -algă pluricelulară -corpul este alcătuit din fire lungi, formate din mai multe celule
Importanța algelor - îmbogătesc apa cu oxigen - hrană pentru alte animale - în alimentația omului, fiind bogate în vitamine și minerale - din ele se pot obține subtanțe precum iodul, potasiul.
Created by: PLory
 

 



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