TNPSC Group-I 2022 · Question 1 of 12

Alterations in the environments represent selective pressures upon the population to which it must adjust. This statement infers that:

Biology

AOrganisms will increase in population in a changed environment
BOrganisms which fail to adjust to the changed environment must vanishCorrect
COrganisms will alter their morphology to adapt to changes in the environment
DOrganism will change the environment under selective pressure

Answer: B. Organisms which fail to adjust to the changed environment must vanish

Explanation

Selective pressure means the environment selects against organisms that cannot adjust; those that fail to adjust must vanish. This is the standard inference.

Source: Appolo Study Centre compilation of TNPSC Group-I Preliminary Examination 2022 tentative key

Practice the full TNPSC Group-I 2022 paper

Timed test with all 12 questions, just like the real exam.

Start test