1. | deaths exceeds number of births and also number of emigrants equals number of immigrants |
2. | births plus number of immigrants equal number of deaths plus number of emigrants |
3. | birth plus number of emigrants is more than the number of deaths plus number of immigrants |
4. | birth plus number of immigrants is more than the sum of number of deaths and number of emigrants |
The process of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration is referred as:
1. Association
2. Emigration
3. Competition
4. Immigration