lecture note 1-2

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Department
Biological Sciences
Course
BIOC50H3
Professor
Herbert Kronzucker
Semester
Winter

Description
LECTURES 1-2: - Ecology: oikos- (the house), -logos (the science of) - The surface of Earth: 510.2 x 10 km (71% covered by oceans) 9 - Age of Earth: ~4.5 x 10 yrs - Life was long believed to have appeared ~3.45 x 10 yrs ago (based on Warrawoona 9 microfossils from Australia, now believed to be faulty; confirmed age of life: ~2 x 10 yrs, although it may well be older; important Canadian microfossils: Gunflint Chert, Lake Superior) - Electromagnetic radiation originating from two types of solar nuclear fusion (deuterium-deuterium and deuterium-tritium) powers the biosphere - Only 150,000,000 of the Suns energy output reaches Earth - The Suns electromagnetic radi
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