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Internal fertilization, leathery amniotic egg, and skin that resists drying are characteristics of a. birds. b. chondrichthyans. c. nonbird reptiles. d. amphibians. e. mammals.
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Internal fertilization, leathery amniotic egg, and skin that resists drying are characteristics of

a. birds.
b. chondrichthyans.
c. nonbird reptiles.
d. amphibians.
e. mammals.

User Brent Morrow
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1 Answer

5 votes
I’m not really sure but I think it is mammals
User Miha Markic
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