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Canada (510,887)
BIOA02H3 (512)
Lecture

Introduction on Physiology - Lecutre 01

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Department
Biological Sciences
Course
BIOA02H3
Professor
Andrew Mason
Semester
Winter

Description
Bio Part II Lecture 17 Common principles help make us make sense of diversity (other theories in bio) o Through unifying principle EVOLUTION (consistent mechanisms) BUT Diversity is very important itself o Many ways to live many possible solutions to problem Diversity of life is important source of informationbut rapidly diminishing o E.g. : water & fishery resources Aral Sea (in-land sea in Central Asia ) formerly the 4 largest in-land sea in the World 2002- it is pretty much gone The water wave feeding the sea was diverted for irrigation for industrial cotton production the area is completely devastated from what it once was Used to be fishery people lived around this body of water Addition to decrease in life forms and water body the water that is there is polluted w irritants and toxins by run-offs from irrigation and industrial waste incidents of respiratory disorders has like 300% in last few years in this part of the world o E.g. fishery : Newfoundland fishermen it used to be so many cods in the sea of Newfoundland (throw just basket in water and scoop them out) fishermen were replaced by factory ships ( efficient way of fishing) scooping in large # of fishes as result natural fish stocks have collapsed & Now, most of our fish comes from farms (raised in these enclosures ) Problem: the fishes raised in these farms are predators they still have to eat they eat the smaller fishes that are unappetizing for us ( using the factory ship) Many different creatures in the wor ld if you want to know how animals work and why they work that wa y there are many examples to look atthus, diversity is an important resources (birds are the last surviving groups of dinosaurs ) www.notesolution.com
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