The largest island of Hawaii has multiple biomes. The reason for this is the topography of the island. In the middle of the island there's an enormous very high volcano. One side of the island manages to get lot of precipitation, the windward side, thus this part of the island is dominated by dense rainforest and animals that are adapted to wet tropical conditions. The other side of the island though receives much less precipitation because the high volcano stops the wet air masses to reach it, so it is mostly dry and warm air masses that reach this part of the island, which is the leeward side. That makes it much drier, semi-arid even, thus it is dominated by grasses and animals adapted to live in that biome. The side parts of the island that are neither on the windward nor on the leeward side receive precipitation, less than the windward side, but more than the leeward side. This makes them be dominated by shrubs, with trees that are more scattered, so the fauna is adapted to this kind of more temperate conditions for living.
In eukaryotic cells, DNA is typically harvested and saved in the nucleus, though prokaryotic cells lack a nucleus, so the DNA merely floats in the cytoplasm instead.
