21. LUNGS:- Pulmonary Respiration GAS EXCHANGE http://www.flushing.k12.mi.us/srhigh/tippettl/biology/frog/index.html http:// www.stclement.pvt.k12.il.us/studentWeb/science98/GarrittPatM/alveoli.gif On Land Buccal cavity skin and Lungs –Respiratory organs
23. Circulatory System Well developed closed type It includes heart, blood vessels and blood Heart :- Muscular, three chambered covered by pericardium
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26. Sinus venosus RIGHTAtrium Vent ricle Con us arter iosus Lungs Body organs LEFT Atrium FROG CIRCULATION
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28. MOST vertebrates have nuclei in their RBC’s MAMMALS DON’T Frog blood composed of Plama, RBC, WBC and plateletts
29. Sinus venosus RIGHTAtrium Vent ricle Con us arter iosus Lungs Body organs LEFT Atrium FROG CIRCULATION
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31. Image from: http://step.sdsc.edu/projects95/Frog.Dissection/index.html KIDNEYS- Remove nitrogen waste from blood and dilute it with water to make urine; osmoregulation