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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DNA is an example of a complex biological polymer called a nuclei acid. Nucleic acids are made up of many smaller sub units called nucleotides. The components of a DNA nucleotide are deoxyribose, phosphate group, nitrogen group. There are four possible bases in a DNA molecules which includes adenine, cytosine, guanine and tymine.
Pandemics occur over a wide geographic region, potentially affecting a large population.
Explanation:
Uhhmmm.....W-where's the diagram though?..
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We can't even answer it cuz u didn't take a picture of ur homework or something..
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