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Class 10 Class 12

When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed

• divergent evolution

• microevolution

• co-evolution

• convergent evolution

D.

convergent evolution

In convergent evolution lineages show similar morphology under the influence of similar environmental factors.

In convergent evolution lineages show similar morphology under the influence of similar environmental factors.

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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.

Methane—sugar—amino acid—nucleic acid.
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Give another name for origin of life from non living matter.

Abiogenesis
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What conditions were created by Miller in his experiment?

Miller  created electric discharge in a closed flask that contained CH4, NH3, H2 and water vapour at high temperature like 800$°\mathrm{C}$
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When did life appear on earth ?

500 million years ago.
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What is the phenomenon called when the original drifted population becomes founders?

Founder Effect.
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