Q What was a distinctive characteristic of the two crests on Dilophosaurus’s head?

Q: What was a distinctive characteristic of the two crests on Dilophosaurus’s head?

A.They were made of bone, but were thin and fragile. B.They were hard and sharp, making them effective weapons. C.They were made of soft skin and could move freely.

A They were made of bone, but were thin and fragile.
B They were hard and sharp, making them effective weapons.
C They were made of soft skin and could move freely.

Answer

A They were made of bone, but were thin and fragile.

Dilophosaurus had two crests on its head, which inspired its name.
Although these crests were made of bone, they were thin and fragile, almost like paper, and were therefore unlikely to have been effective weapons for attacking prey.
They may have been used for display to other members of the same species or to help distinguish Dilophosaurus from other dinosaurs.

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