|Life on Arida originally arose in the ancient
primordial oceans many billions of years ago. Multicellular and advanced
plant forms evolved and diversified in the oceans over the millennia from
the ancient Primordial cells.
From the three types of water plants that evolved in the
oceans -- Heliotropus, Asperdoma and Hennaphyta -- three distinct genus
of land plants adapted and evolved to life on the shore in three biomes.
The three biomes in which plants adapted to live are the
tropical rainforest, the savannah or grassland, and the desert. Since each
biome is significantly different in terms of rainfall and average temperature,
the adaptations of the plant species that were able to survive in them
are different in significant ways.