Match the following:
Assertion (A): Reptiles and birds adopted uricotelism. Reason (R): To conserve water.
Identify the correct statements:I. Veins are bright red in colour and provided with wide lumen II. Veins are non-valvular and blood flows in veins by jerks. III. Arteries are provided with thick tunica media. IV. Veins end in capillaries and arteries start with capillaries.