THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The saline marshy soil lacks oxygen. Normally, soil on land has gaps through which the roots take in oxygen, but in marshy soil, these gaps are filled with water. Therefore, to breathe, the roots grow above ground level.

Detailed explanation-2: -In order to capture more oxygen, the roots of the mangrove trees grow upwards, out of the soil. These special roots are called pneumatophores. The pneumatophores rise above the water level and have lenticels or breaks in the outer bark that allows air to pass down to the submerged root system.

Detailed explanation-3: -Through the interconnected roots, the mangroves exchange water and dissolved nutrients during times of shortage. The trees that have better access to water can help supply neighboring trees in this way. Research shows that mangroves connected by root networks are larger on average.