Question

3.How does roots respire under water logged condition in mangroves plants?​

Answer 1

For this purpose, mangrove species have specialized above ground roots called breathing roots or pneumatophores.... These roots have numerous pores through which oxygen enters into the underground tissues. In some plants buttress roots function as breathing roots and also provide mechanical support to the tree.

Answer 2

Explanation:

Breathing roots: Underground tissue of any plant requires oxygen for respiration and in mangrove environment, oxygen in soil is very limited or nil. This necessitates mangrove root system to take up oxygen from the atmosphere. ... These roots have numerous pores through which oxygen enters into the underground tissues.