A: Typhlosole is the characteristic dorsal median fold in the intestine of earthworm.
R: Typhlosole secretes intestinal juice containing digestive enzymes.
A. IF both assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both assertion & reason are true but the reason is not the correct explanation of the assertion, then mark (2).
C. If assertion is true statement but reason is false, then mark (3).
D. If both assertion and reason are false statements, then mark (4).