Explain evolutionary relationship among animal groups, Biology

Evolutionary relationship among various animal groups is depicted in the cladogram given below. P, Q and R respectively shown:


a.  Vertebrae, hair and four limbs.

b.  Bony skeleton, hair and amniotic eggs.

c.  Vertebrae, amniotic eggs and hair.

d.   Respiration by skin, lungs and poikilothermy.



Posted Date: 6/27/2013 6:12:13 AM | Location : United States

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