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Lecture

BIO 220 Lecture 1

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Department
Biology
Course
BIO220H1
Professor
Ashercutter
Semester
Winter

Description
BIO220H1SLecture 1Background reading pp113119 assigned reading 124130 Genes Environment and Behaviour Genes environment and phenotype Phenotypic plants and reaction norms The evolution of behaviours Two classes of scientific questions Proximate Causes HowWhat How can an individual manage to carry out an activity How do mechanisms within an animal work to produce a particular behaviour Ultimate Causes WhyWhy an animal has evolved this behaviour Tinbergen came up with the notion of Ultimate Causes Z phenotype G genesE environment The RoverSitter Polymorphism Variation within a Population Maggots of fruit flies can be kept in Petri dishes which have 2 substances in themyeast and agar The maggots feed on the yeast and therefore forage on the trails of yeast but when there are patches of yeast some maggots move more and some less There are to be 2 types of foraging behaviour in the larvae Rover and Sitter where the Rover moves more but it tends to be foodrelated bec
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