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NEETZoologyOrganisms and Populations

Under a particular set of selection pressures, towards what do organisms evolve?

Options

  1. AIncreased lifespan
  2. BMost efficient reproductive strategy
  3. CGreater size
  4. DHigher genetic diversity

Correct answer

B. Most efficient reproductive strategy

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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