Teoria de l'evolució S'han fet moltes teories per explicar l'evolució de les espècies, totes les teories han estat fortament influenciades per la situació social o les creences que han imperat en cada moment. L'escala temporal de l'evolució és un concepte molt important ja que sovint se'ns fa difícil entendre la dimensió temporal on té lloc l'evolució, en l'esquema s'ha reduït la historia de la vida a la Terra a 24 h. per entendre a quina hora s'ha produït cada esdeveniment.

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Teoria de l'evolució Creacionista Evolucionista Proves de l'evolució evolucio cotxe?

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Creacionista Son teories que creuen que les espècies han estat creades tal i com les coneixem ara, aquestes teories no poden ser comprovades cientificament i per tant queden fora de l'activitat científica. 3

Evolucionista Jean Baptiste Lamarck Les espècies venen les unes de les altres per transformació degut a la necessitat d'adaptarse a les noves condicions.

Darwin-Wallace Els dos naturalistes van publicar simultàniament una teoria que explicava l'evolució a partir de la selecció natural

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Jean Baptiste Lamarck La necessitat crea l'órgan Els caràcters adquirits es transmeten a la nova generació

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Darwin-Wallace Selecció artificial Existeix una gran diversitat dins de les espècies El medi selecciona els individus més ben adaptats Les característiques avantatjoses passan a la descendència 6

Darwin-Wallace Neodarwinisme Teoria sintètica Video Darwin

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Neodarwinisme Teoria sintètica Les mutacions es produeixen a l'atzar Les mutacions desfavorables pels individus desapareixen per Selecció natural

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Neodarwinisme Teoria sintètica Les mutacions favorables es fixaran en la població

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Proves de l'evolució Anatòmiques Òrgans anàlegs Òrgans homòlegs ôrgans vestigials Evolució peixos

Biogeogràfiques Bioquímiques

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22 Evolucio.pdf

Evolucionista. Jean Baptiste. Lamarck. Les espècies venen les unes de. les altres per transformació. degut a la necessitat d'adaptar- se a les noves condicions.

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