Question

77. Sometimes RBCs cling together in the blood
forming the structure like a pile of coins. It is
called -
(a) Rouleaux
(b) Lacuna
(c) Islets
(d) Platelets​

Answer 1

Answer:

Rouleaux

Explanation:

Rouleaux (singular is rouleau) are stacks of red bloodcells(RBCs) that forms because of the unique discoid shape of the cells in vertebrates