workshop 9 - Workshop on Vertebrates Part 2 Amphibians...

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Workshop on Vertebrates –Part 2 Amphibians, Reptiles,birds and mammals ( Malancha sarkar) 1.What risks and benefits are posed by large size of the body? 2.The body plan of most vertebrates is based on four appendages. What are the varied forms that these appendages take, and how are they used? 3.Which vertebrates groups are collectively termed tetrapods? 4. Amphibians have survived and prospered for many millions of years, but today many species are disappearing, and population of others are declining seriously. What features of their life histories might make amphibians especially vulnerable to the kinds of environmental changes now happening on Earth? 5.What are amniotes, anamniotes?
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6.By drawing contrasts with non-amniotes, give two examples of how the evolution of an amniotic egg may have contributed to the diversity of terrestrial vertebrates? . 7.Oviparity and viviparity can generate a variety of costs associated with parental care.
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