What came first, the chicken or the egg? In this scenario, was it reptiles, birds, or dinosaurs? Scientists debate the evolution
of these three life forms on ancient Earth. After many years of research, scientists have proposed the evolutionary relationship seen here. This model supports what theory of evolution?
A) Dinosaurs gave rise to the birds.
B) Dinosaurs split off early from the reptile family tree.
C) Only turtles are not closely related to the early dinosaurs.
D) Birds and dinosaurs are more closely related than reptiles and dinosaurs.
A) Dinosaurs gave rise to the birds.
B) Dinosaurs split off early from the reptile family tree.
C) Only turtles are not closely related to the early dinosaurs.
D) Birds and dinosaurs are more closely related than reptiles and dinosaurs.
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