In the given figure, I, B, D and E stand for:
  
I B D E
1. Emigration Natality Mortality Immigration
2. Emigration Mortality Natality Immigration
3. Immigration Natality Mortality Emigration
4. Immigration Mortality Natality Emigration
Subtopic:  Population Characters: Density | Population Characters: Natality & Mortality |
 93%
Level 1: 80%+
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If a new habitat is just being colonized, which of the following is most likely to contribute to an increase in the population density?

1. Birth rate 2. Death rate
3. Immigration 4. Emigration
Subtopic:  Population Characters: Density | Population Characters: Natality & Mortality | Population Characters: Age Structure & Migration |
 88%
Level 1: 80%+
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