Prezentare Power Point, Ecosistemul, Cls.a VIII-A

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ECOSISTEMULECOSISTEMUL

BiotopBiotopBiocenozăBiocenoză

BIOTOPULBIOTOPUL Reprezintă totalitatea factorilor abiotici Reprezintă totalitatea factorilor abiotici

prezenţi într-un anumit spaţiu de viaţă care prezenţi într-un anumit spaţiu de viaţă care asigură existenţa unei comunităţi de asigură existenţa unei comunităţi de vieţuitoare.vieţuitoare.

Factorii abiotici sunt:Factorii abiotici sunt:-apa -lumina-apa -lumina-solul -temperatura-solul -temperatura-aerul -poziţia geografică-aerul -poziţia geografică

BIOCENOZABIOCENOZA Reprezintă comunitatea de populaţii Reprezintă comunitatea de populaţii

caracteristice unui biotop.caracteristice unui biotop. Cuprinde:Cuprinde:-plantele -plantele -animalele-animalele-omul-omul

ECOSISTEMULECOSISTEMUL Reprezintă unitatea structurală şi Reprezintă unitatea structurală şi

funcţională care se stabileşte între biotop funcţională care se stabileşte între biotop şi biocenoză.şi biocenoză.

Tipuri de ecosisteme:Tipuri de ecosisteme:-naturale:-terestre-naturale:-terestre -acvatice-acvatice-antropizate-antropizate

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