The single most important limiting factor in any terrestrial biome is

The right answer is available water.

The biome is an ecological unit of very large extent, covering a fraction of one or more continents and characterized by a set of plant and animal species that are specific to it.

The tropical rain forest, the temperate forest, the boreal forest, the grassland, the savannah, the scrub, the desert and the tundra are biomes. Most often, biomes refer to a terrestrial community, but aquatic communities can also be classified as biomes. Marine biomes include coral reefs and deep seabed. Freshwater biomes include lakes, ponds and streams. Their presence or absence indicates the presence of water (or not) in the vicinity of the terrestrial biome.

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.