BIOL 1001 Study Guide - Final Guide: Tetrapod, Exaptation, Transitional Fossil
16 Aug 2016
School
Department
Course
Professor
Document Summary
G3 explain, drawing on knowledge of microevolution how complex evolutionary innovations (traits) such as camera eye, feather for flight or behaviours might have evolved from no trait" to. Explain exaptation and its role in morphological innovation. Morphological trait- one that allowed descendants to live in new areas, exploit new sources of food or move in new ways- triggered many of diversification events in history of life. The evolution of wings, three pairs of legs , complex mouth parts and strong external skeleton helped insects move and feed efficiently. Flowers are unique reproductive structure that helped trigger diversification of angiosperm (flowering plants). Because flowers are particularly efficient at attracting pollinators, the evolution of flower made angiosperms more efficient in reproduction. Cichlids are lineage of fish that evolved unique set of jaws in their throat and second jaws make food processing extremely efficient. Feathers and wings gave some dinosaurs the ability to fly.
