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Summary

Zusammenfassung Biologie

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Welche Arten von Selektion gibt es und wie „Funktioniert“ Selektion? 5 Seiten sehr gut gestaltet alles zu selektion mit einfachen beispielen

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  • February 15, 2022
  • 5
  • 2020/2021
  • Summary
  • Secondary school
  • Gesamtschule
  • 1
avatar-seller
6. Welche Arten von Selektion gibt es und
wie „Funktioniert“ Selektion?

Selektion = Auslesen

Es gibt zwei Selektionsfaktoren

1. Abiotische Faktoren (nicht lebendige)

• Temperatur
• Licht
• Wind
• Süß - Salzwasser ( Unterwasser Tiere )
• Sauerstoff
• Feuchtigkeit

2. Biotische Faktoren (lebendige)

• Nahrung
• Parasiten
• Krankheiten
• Konkurrenz
➢ Nahrung
➢ Fressfeinde
➢ Fortpflanzung
➢ Nistplätze
➢ Revier

, Natürliche Selektion
Die natürliche Selektion beschreibt die Veränderung
durch die Umwelt infolge von abiotischer (bsp. Licht,
Temperatur) und biotischer (bsp. Konkurrenz, Symbiose)
Selektionsfaktoren. Dabei wird beschrieben, wie besser
angepasste Individuen auch eine höhere
Überlebenschance haben ("survival of the fittest") . Dies
führt dazu, dass die Wahrscheinlichkeit zur Weitergabe
der Gene erhöht wird.

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