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Scientists have debated the evolution of three life forms: reptiles, birds and dinosaurs. After many years of reviewing fossil records scientists proposed the evolutionary relationship seen above in the cladogram. Using radiometric dating scientists added a time frame for the evolution of the animals within the model.

Based on this new information, what prediction can we make about the animals represented here? MYA refers to millions of years ago.

User Serp C
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Answer :)

Turtles were the first group of animals to branch off in this tree of animals.

User Alexandre Duros
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Answer:

Turtles were the first group of animals to branch off in this tree of animals.

Step-by-step explanation:

Turtles were the first group of animals to branch off in this tree of animals. According to the tree, the animals share a common ancestor. The first branch shows that what we call a speciation event occurred, resulting in two lineages. The first group of animals to result were the turtles. All the other animals are on the other branch. This does not indicate that any group is more highly evolved than the other.

User Dreaded Harvester
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