Answer:The largest biome in North America is <u><em>A, the Tundra.</em></u><em> </em>
Explanation: In North America, there are a total of 6 biomes. The largest Tundra is located in the Rocky Mountains in Colorado. The Coniferous Forest (Taiga) is the 2nd largest biome that is located in North America. The other biomes in North America are grassland, deciduous forest, desert, and the tropical rain forest.
Answer:
p53 gene is an important gene that regulates the proper functioning of the cell. This gene plays an important role in the cell cycle progression and acts as genome guardian.
Any mutation in p53 leads to the formation of the different types of cancer cells. The p53 gene is activated by teh phosphorylation at the particular sites. High levels of phosphorylated p53 in the cell indicates that the cells DNA is highly damaged and mutated.
Explanation:
The core threats to biodiversity are human population growth and unsustainable resource use. To date, the most significant causes of extinctions are habitat loss, introduction of exotic species, and overharvesting.
