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Evolution

Question
CBSEENBI12047622
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Archaeopteryx is

  • a living fossil

  • a mammal

  • a connecting link between Annelida and Arthropoda

  • a connecting link between reptiles and birds

Solution

D.

a connecting link between reptiles and birds

Archaeopteryx (lizard bird) is a prin itive fossil bird, which existed on earth about some 150 million years back. It is a connecting link between reptiles and birds. 

It characteristic feature are wings, feather, prolonged beak (birds), teeth in beak, keetless-sternum, long tail with unfused vertebrae, pygostyle absent, separate digits of wings and claws on fingers (reptiles).

Some More Questions From Evolution Chapter

Arrange the following substances in a proper sequence with regard to the formation of chemical constituents at the time of origin of life :

Sugar, methane, nucleic acid and amino acid.

What is the phenomenon called when the original drifted population becomes founders?

What are the two key concepts of Darwinian Theory of Evolution

What were the units of life according to the early Greek thinkers ?

Mention the type of nutrition in the cells originated first during the origin of life.

Which group of organisms were responsible for appearance of free oxygen in the atmosphere of the primitive earth ?

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

Name the different eras of geologic time scale.

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