Tundra
Tundra is a biome that is located in the coldest regions of the world. This is characterized by short growing seasons and low temperatures. The plants growing in these regions are short perennials.
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Answer:
Nitrogen fixing bacteria in the soil and within root nodules of some plants convert nitrogen gas on the atmosphere to ammonia.
Nitrifying- bacteria convert ammonia to nitrites.
A molted external skeleton.
In a normal human karyotype, depending on the part of mitosis the cell is in, there are either 23 or 46.
