The ocean biome because it covers so much of the earths surface and it is a 3D habitat; creatures live miles above and below each other, while land creatures are all living on top of the surface of the earth. Very few creature(in comparison) can survive underground.
I could be wrong, but I am pretty sure it is not the temperate deciduous forest, but the rain forest biome that has the most biodiversity.
marine biome f*ck the person who put marine biome because that's b*llshit The most diverse biome is actually the wetlands but many still assert that it is the tropcial rain forest.
On Earth there are many biomes, and all of them have biodiversity. However, the rainforest biome is the one with the highest species diversity.
Tropical rainforests and coral reefs are the two biomes with the most biodiversity. Both of these biomes support a wide variety of plant and animal species due to their unique environmental conditions and high productivity levels.
The biome between the Tropic of Cancer and the equator is typically tropical rainforest. This biome is characterized by high levels of rainfall, dense vegetation, and high biodiversity.