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Unformatted text preview: Examples) Amphibians, Annelids, mammals, Mollusk (Squid, octopus) … 3) Heart was developed as time went on (evolution.) a) Heart consists of atrium and ventricle. b) Atrium – the part that receives the blood. c) Ventricle – the part that sends the blood. d) Diversity of Heart Structure Fish: 1 atrium + 1 ventricles – 2 chambers Amphibian: 2 atria + 1 ventricle – 3 chambers Reptiles: 2 atrium + 2 ventricles (But, no separation) – 4 chambers Oxygenated blood can be mixed with non-oxygenated blood. Mammals, Birds: 2 atrium + 2 ventricles (But, separation) – 4 chambers The separation of oxygenated blood from non-oxygenated blood – much more effective....
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This note was uploaded on 02/11/2012 for the course ZOOLOGY 152 taught by Professor Stephengammie during the Spring '11 term at University of Wisconsin.
- Spring '11