Respuesta :
Answer:
The correct answer is option A, Some dinosaurs had feathers
Explanation:
There were several evidences which could prove that birds evolved from dinosaur
a) Achaeopteryx which is a large-sized creature with toothed jaws, a long tail, and flight feathers has feather as a common feature between bird and them
b) Maniraptorans resembled lot many birds in the way that they have the similar shape of bones
c) Some studies also said that the eggs of these dinosaurs were similar to the eggs of the bird
Dinosaurs had feathers, that is why some researchers think that they are evolved from dinosaurs.
Further Explanation:
Birds evolved from a group of meat-eating dinosaurs called theropods. That's the same group that Tyrannosaurus rex belonged to, although birds evolved from small theropods, not huge ones like T. rex.The oldest bird fossils are about 150 million years old. These ancient birds looked quite a lot like small, feathered dinosaurs, and they had much in common. Their mouths still contained sharp teeth. But over time, birds lost their teeth and evolved beaks.
Archaeopteryx, which is a large-sized creature with toothed jaws, a long tail, and flight feathers, has feathers as a common feature between birds and them. Maniraptorans resembled a lot many birds in the way that they have the similar shape of bones. Some studies also said that the eggs of these dinosaurs were similar to the eggs of the bird. These are some evidence that helps in suggesting that birds are evolved from dinosaurs.
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Answer Details:
Grade: High School
Subject: Biology
Topic: Ecology
Keywords:
Birds, dinosaurs, research, evolved, jaw, beak, egg, feather resemble, theropods, huge, teeth, fossils, contained, sharp.
