41. What's more important to reptiles: internal fertilization, or the development of scales? What are the benefits of both adaptations and their relative importance to the species?

Can I get some links, or suggestions to help me with this question?

Thanks
-MC

1 answer

http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS362&q=reptiles