Biology - Organisms and Populations Question with Solution | TestHub
Given below are two statements regarding population growth.
One is labelled as Assertion (A) and the other one labelled as Reason (R).
Assertion (A) : Sometimes oysters produce a large number of small offsprings and birds produce a few large-sized offsprings.
Reason (R) : Under a particular set of selection pressures, organisms evolve towards the most efficient reproductive strategy.
In light of the above statements, choose themost appropriateanswer from the options given below.
Options:
Answer:
Solution:
Populations evolve to maximise their reproductive fitness, also called Darwinian fitness, in the habitat in which they live.
Under a particular set of selection pressures, organisms evolve towards the most efficient reproductive strategy. This explains why different organisms have different reproductive strategies.
For example, some organisms produce a large number of small-sized offspring (such as oysters and pelagic fishes) while others produce a small number of large-sized offspring (such as birds and mammals).
Therefore, both Assertion (A) and Reason (R) are correct, and (R) is the correct explanation of (A).
Answer: Both (A) and (R) are correct and (R) is the correct explanation of (A).
