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Biodiversity and Conservation

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Which one of the following is not a living fossil?

  • King crab

  • Sphenodon

  • Archaeopteryx

  • Peripatus


C.

Archaeopteryx

Archaeopteryx lithographica is not a living fossil. It is a fossil bird that lived in Jurassic period about 180 million years ago. Its fossil displays the characters of both reptiles (e.g., Long tail, bones not pneumatic, jaws with teeth, fingers terminating into claw, presence of weak sternum, free caudal vertebra etc) and birds beak, fore limbs modified into wings, intimate fusion of skull bones etc.) King krab, Sphenodon and Peripatus are the living fossils.

Archaeopteryx lithographica is not a living fossil. It is a fossil bird that lived in Jurassic period about 180 million years ago. Its fossil displays the characters of both reptiles (e.g., Long tail, bones not pneumatic, jaws with teeth, fingers terminating into claw, presence of weak sternum, free caudal vertebra etc) and birds beak, fore limbs modified into wings, intimate fusion of skull bones etc.) King krab, Sphenodon and Peripatus are the living fossils.

473 Views

According to the IUCN (2004), the total number of plant and animal species described so far is slightly more than :
  • 1.5 million
  • 15 million
  • 150 million
  • 1500 million

A.

1.5 million
1066 Views

What are the species confined to a region and not found anywhere else called?
  • Endangered
  • extinct
  • Sacred
  • Endemic

D.

Endemic
916 Views

The number of national parks in India is :
  • 56
  • 66
  • 90
  • 448

C.

90
1323 Views

Number of Biosphere reserves in India is :
  • 143
  • 90
  • 180
  • 448

B.

90
987 Views

Animals constitute what % of the total species of organisms (plants and animals) recorded so far ?
  • 7%
  • 70%
  • 17%
  • 8%

B.

70%
781 Views