Statement A: Ribbon shaped pollen grains are present in Zostera or SeagrassStatement B: All aquatic angiosperms are pollinated by water.

In underwater pollinated plants like Zostera, the pollen grains are elongated, ribbon like or needle like and have same specific gravity as that of water and suspended in the water after release. These pollen grains have a mucilaginous covering that protects the pollen grains from wetting. Most of the aquatic angiosperms are pollinated by insects or wind