Well! A biome is universal. A biome is like: snowy, rain-forest, etc. So, you have no choice, but to spawn in a biome. So yeah, you will ALWAYS, NO MATTER WHAT, spawn in a biome. Hope that helps Newly Spawned person!
I went onto the mods and textures pack page, but there was no biosphere mod there. How do I uninstall this? BTW, this may be from this past weekend, and my friend came on and logged onto his account on my computer.