The graph shows the number of species introduced to new habitats in the United States in the specified period of time. X-axis representing the year from 1850 to 1996 which itself disintegrated in 50 years slab (1850-1900, 1901-1950 and 1951-1996). Y-axis representing 'Number of Species' going from 0 to 600 in increments of 100. The data is given as:
| Year | Domestic Species | Foreign Species |
|---|
| 1850-1900 | 85 | 5 |
| 1901-1950 | 110 | 15 |
| 1951-1996 | 300 | 175 |