Why can many ecosystems exist in one boime

Numerous ecosystems systems can exist in one biome in light of the fact that a biome is immense, and take the Marine Biome for example.There are diverse zones that things live in or environments.

Explanation:

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.