1. Amphibians By Koey Cho

2. General information Kingdom : Animalia Phylum : Chordata Class : Amphibia Examples : FrogSalamanderToad

3. Have 4 legs Adapt to both aquatic & land environments Pokilotherms Have moist, scaleless skin Carry out external fertilization Breathing : larvae  by gills adults  by moist skin & lungs

4. Body structure

6. Special characteristics of skin Wet, scaleless skin which is permeable to water Various colour &patterns Mucous glands and poison glands are present.

8. Breathing 1. larvae  gills

9. 2. adults  lungs and moist skin

10. Reprodution Carry out external fertilization Lay eggs without shells Eggs are laid in water

12. Non-shelled egg

13. Life cycle

15. Evolution Amphibians are evolved from fish

16. Amphibians vs reptiles AmphibiansReptiles Methods of breathing Gills & lungsLungs EggsNon-shelled eggs Shelled eggs Skin textureMoist, scaless skin Dry, scaly skin FertilizationExternalInternal ExamplesFrog, toadLizard, snake

18. Reference http://www.thefrog.org/biology/temperature/temperatue.htm http://www.scribd.com/doc/11337901/The-Evolution-of-Amphibians http://library.thinkquest.org/27885/amphi_ev.htm http://en.wikipedia.org/wiki/Amphibian http://news.nationalgeographic.com/news/2007/08/images/070830-poison- frog.jpghttp://news.nationalgeographic.com/news/2007/08/images/070830-poison- frog.jpg http://crazy-about- books.com/yahoo_site_admin/assets/images/image007.93133449_std.jpghttp://crazy-about- books.com/yahoo_site_admin/assets/images/image007.93133449_std.jpg http://www.transtutors.com/Uploadfile/CMS_Images/13907_V-S-Skin-of- frog.JPGhttp://www.transtutors.com/Uploadfile/CMS_Images/13907_V-S-Skin-of- frog.JPG http://wanderingowloutside.files.wordpress.com/2010/02/frog-life-cycle.jpg http://www.saburchill.com/images02/020107041.jpg http://4.bp.blogspot.com/_nvWgMkmFQCE/SYe28SKhkLI/AAAAAAAACWQ /lbLYzHczvAU/s400/Amphibian+evolution.jpghttp://4.bp.blogspot.com/_nvWgMkmFQCE/SYe28SKhkLI/AAAAAAAACWQ /lbLYzHczvAU/s400/Amphibian+evolution.jpg http://www.k12sciencestore.com/support/dissectionworks/pictures/frog/label /nervous_system_l.gihttp://www.k12sciencestore.com/support/dissectionworks/pictures/frog/label /nervous_system_l.gi http://www.diffen.com/difference/Amphibian_vs_Reptile http://cdn.webecoist.com/wp-content/uploads/2009/07/Amazing-Reptile- and-Amphibian-Anamolies1.jpghttp://cdn.webecoist.com/wp-content/uploads/2009/07/Amazing-Reptile- and-Amphibian-Anamolies1.jpg

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