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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES. Live inside shell attached to the skeleton. Highly mobile types have a reduced shell (eg. Sea turtles) Use tough, horny plates and strong jaws to chew food. All lay eggs on land; many eggs are eaten by predator only few survive. 1. Turtles.
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Live inside shell attached to the skeleton. Highly mobile types have a reduced shell (eg. Sea turtles) Use tough, horny plates and strong jaws to chew food. All lay eggs on land; many eggs are eaten by predator only few survive. 1. Turtles