diversity of mammals
TRANSCRIPT
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Diversity of Mammals
By Rosario Garcia 3rd Period Biology
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Monotremes
Monotremes lay eggs, but feed their young milk. Examples: Platypus, Spiny Anteaters, echidnas.
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Marsupials
Marsupials bear their young that complete their development in an external pouch.Examples: Wallabies, Kangaroos
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Placental Mammals
In placental mammals, nutrients, oxygen, carbon dioxide and wastes are exchanged with the mother embryo together through the placenta. Most mammals are placental mammals.
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Biology of Mammals
Similar ecological opportunities on the different continents have produced some striking examples of convergent evolution in mammals.
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Works Cited
Greg Wood. FILE-AUSTRALIA-NATURE-PLATYPUS-BABY. Getty Images. 06 May. 2008. eLibrary. Web. 10 Mar. 2010. dv426053. Getty Images. 03 Mar. 2010. eLibrary. Web. 10 Mar. 2010. Mychele Dantau. A zoo employee gives some milk to Hercule, a four-day- old maki.... Getty Images. 17 Apr. 2007. eLibrary. Web. 10 Mar. 2010. Miller, Kenneth R., and Joseph S. Levine. Prentice Hall Biology. Upper Saddle River, N.J.: Pearson/Prentice Hall, 2008. Print.