The Permian period,during which the first most modern orders of insects appeared,occurred approximately

  • A
    $80$ million years ago
  • B
    $150$ million years ago
  • C
    $280$ million years ago
  • D
    $550$ million years ago

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Similar Questions

Given below are four statements $(A-D)$ each with one or two blanks. Select the option which correctly fills up the blanks in two statements.
Statements:
$(A)$ Wings of butterfly and birds look alike and are the results of $ . . . . . . (i) . . . . . . $ evolution.
$(B)$ Miller showed that $CH_4, H_2, NH_3$ and $ . . . . . . (i) . . . . . . $ when exposed to electric discharge in a flask resulted in formation of $ . . . . . . (ii) . . . . . . $.
$(C)$ Vermiform appendix is a $ . . . . . . (i) . . . . . . $ organ and an $ . . . . . . (ii) . . . . . . $ evidence of evolution.
$(D)$ According to Darwin,evolution took place due to $ . . . . . . (i) . . . . . . $ and $ . . . . . . (ii) . . . . . . $ of the fittest.

The greatest evolutionary change enabling land vertebrates to be completely free from the water habitat was the development of:

Which of the following refer to correct example$(s)$ of organisms which have evolved due to changes in environment brought about by anthropogenic action?

Which of the following options represents the correct sequence of animals based on the evolution of the heart?

Match the factors of modern synthetic theory/speciation in Column $I$ with the examples in Column $II$ and select the correct option.
Column $I$Column $II$
$A$. Natural selection$I$. Darwin's finches
$B$. Geographical isolation$II$. Mule
$C$. Hybrid sterility$III$. Cichlid fishes in Lake Victoria
$D$. Sympatric speciation$IV$. Biston carbonaria

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