170
edits
Changes
From Karnataka Open Educational Resources
→Notes for teachers
===Notes for teachers===
===Notes for teachers===
#'''Mammals are the most advanced and highly evolved class among animals'''
#'''They possess mammary glands to feed their infants'''
#'''They are viviparous except Echidna and Platipus'''
#'''They are eurythermal,having four chambered heart in bood circulation which enables seperate ways for circulation of oxygenated and deoxygenated blood'''
#'''Diaphragm seperates chest portion from abdomen'''
#'''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'''
