#'''Mammals are the most advanced and highly evolved class among animals'''
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#'''They possess mammary glands to feed their infants'''
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#'''They are viviparous except Echidna and Platipus'''
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#'''They are eurythermal,having four chambered heart in bood circulation which enables seperate ways for circulation of oxygenated and deoxygenated blood'''
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#'''Diaphragm seperates chest portion from abdomen'''
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#'''The nervous system is highly evolved with brain,spinal chord and 12 pairs of brain nerves'''
+
===Activities===
===Activities===
#Activity No #1 '''page_name_concept_name_activity1'''
#Activity No #1 '''page_name_concept_name_activity1'''