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NEETZoologyOrganisms and Populations

Which organisms are mentioned as breeding only once in their lifetime?

Options

  1. AMost birds and mammals
  2. BOysters and pelagic fishes
  3. CPacific salmon fish and bamboo
  4. DBirds and mammals

Correct answer

C. Pacific salmon fish and bamboo

Step-by-step solution

Populations evolve to maximize their reproductive fitness, also called Darwinian fitness (high r value), in the habitat in which they live. Under a particular set of selection pressures, organisms evolve towards the most efficient reproductive strategy. Some organisms breed only once in their lifetime (Pacific salmon fish, bamboo) while others breed many times during their lifetime (most birds and mammals). Some produce a large number of small-sized offspring (Oysters, pelagic fishes) while others produce a small n

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