Assertion (A): The two-kingdom classification system was found to be inadequate.
Reason (R): It did not distinguish between eukaryotes and prokaryotes, or between unicellular and multicellular organisms.
Assertion (A): The two-kingdom classification system was found to be inadequate.
Reason (R): It did not distinguish between eukaryotes and prokaryotes, or between unicellular and multicellular organisms.