Multiple Choice Questions

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In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

  • Stabilizing Selection

  • Disruptive Selection

  • Cyclical Selection

  • Directional Selection


A.

Stabilizing Selection

The given data shows stabilising selection as most of the newborn having average weight between 3 to 3.3 kg survive and babies with less and more weight have low survival rate.


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The number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration is known as

  • Emigration

  • Mortality

  • Natality

  • Immigration

  • Immigration


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