L’organisme pluricellulaire, un ensemble de cellules spécialisées

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L’organisme pluricellulaire, un ensemble de cellules spécialisées

Chapitre 1 : l’organisme pluricellulaire, un ensemble de cellules spécialisées Comment les cellules peuvent-elles assurer des fonctions particulières ? I -Des êtres vivants à plusieurs cellules : les pluricellulaires TP observation de différentes cellules au microscope optique Bilan : les organismes pluricellulaires sont composés de différentes cellules. ces cellules peuvent être spécialisées et assurer une ou plusieurs fonctions. Les cellules

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La formation du pétrole : combustible fossile

Voici les réalisation des élèves de seconde : En vidéo : modélisation de la formation du pétrole – SVT 2nde par vive-les-svt Vocabulaire : – roche mère = roche sédimentaire dans laquelle se forment les hydrocarbures – hydrocarbure = élément organique composé uniquement d’hydrogène et de carbone – roche couverture = roche imperméable qui stoppe la remontée des hrydrocarbures –

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