Define a taxon. Give some examples of taxa at different hierarchical levels.
Assertion (A): Taxonomic relationships become more difficult to determine at higher categorical levels. Reason (R): Higher taxonomic categories have more shared characteristics among their members than lower categories.
Correct answer: C — If assertion is true but reason is false.
NCERT states “Higher the category, greater is the difficulty of determining the relationship to other taxa at the same level” (Assertion true). However, NCERT explicitly states “Lower the taxa, more are the characteristics that the members within the taxon share” - the Reason reverses this relationship, falsely claiming higher categories have MORE shared characteristics when NCERT indicates the opposite.
MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.