Evolution (Zoology)
- Which is not a vestigial part in humans?
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Human body contains about 180 vestigial organs coccyx, third molars (wisdom teeth) and muscles of abdomen etc.
Correct Option: B
Human body contains about 180 vestigial organs coccyx, third molars (wisdom teeth) and muscles of abdomen etc.
- Forthcoming generation are less adaptive than their parental generation due to
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Natural selection operates through differential reproduction. Genetic drift is random change in the allele number and frequency in a gene pool.
Correct Option: B
Natural selection operates through differential reproduction. Genetic drift is random change in the allele number and frequency in a gene pool.
- Frequency of an allele in a isolated population may change due to
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Mutations are sudden inheritable variations which develop in the genetic system. Natural selection operates through differential reproduction.
Correct Option: A
Mutations are sudden inheritable variations which develop in the genetic system. Natural selection operates through differential reproduction.
- Half life period of C is about
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In 5000 years a given amount of radioactive carbon would decay to half initial concentration.
Correct Option: B
In 5000 years a given amount of radioactive carbon would decay to half initial concentration.
- Occurrence of endemic species in South America and Australia is due to
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These areas are geographically isolated from other continents by the oceanic barrier which has prevented uniform distribution of fauna.
Correct Option: B
These areas are geographically isolated from other continents by the oceanic barrier which has prevented uniform distribution of fauna.
