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Evolution

Feather impri...

Question

Feather imprints were preserved along the dinsaur"s bones but dinosaur"s couuld fly.What was the significance of feathers in reptiles and later on for other species?

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Solution

The feathers in reptiles were mainly used as insulation to keep their bodies at an even temperature and to support gliding locomotion in some reptiles. These feathers have been modified in modern birds for the flight.

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Q. Question 25
Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that

(a) reptiles have evolved from birds
(b) there is no evolutionary connection between reptiles and birds
(c) feathers are homologous structures in both the organisms
(d) birds have evolved from reptiles

Q. Some dinosaurs had feathers although they could not fly. Birds have feathers that help them to fly. Identify the correct statement based on this information.

Statement 1: Reptiles have evolved from birds

Statement 2: There is no evolutionary connection between reptiles and birds.

Statement 3: Birds have evolved from reptiles

Q. Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution means that

Q. Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that _____________________.

Q. The reptiles, like dinosaurs were dominant in ________ period.

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