WAEC - Biology (2018 - No. 18)
The structures for gaseous exchange in breathing roots are
stomata
lenticels
cuticle
mitochondria
Giải thích
Breathing roots, also known as pneumatophores, have portions of the root which grow upward until they project some centimetres above the low-tide level. They have small openings called lenticels in their bark so that air can reach the rest of the plant’s root system.