This might help here you go
There is over 4,000 invasion species in America. Please specify.
The answer is - because over 90% of this biome has been converted to agriculture.
This biome has been much larger before the development of the agriculture in this part of the USA, but because this biome provided large territories with deep fertile soil and predominantly lowland areas, people started using it for agriculture because it was the most suitable for that. So little by little, the biome was declining and more and more of it was becoming agricultural land.
Hemophilia is a recessive trait because the abnormal gene is responsible for the hemophilia carried on the X chromosome
