Biology

The correct answer is: D.births, deaths, immigration and emigration

These are the three primary factors that affect population size:

1. Births: The number of individuals being born increases the population size.

2. Deaths: The number of individuals dying decreases the population size.

3. Immigration/Emigration: When individuals move into (immigration) or out of (emigration) a population, it can either increase or decrease the population size.

The other options are not correct:

A. Deaths, births, buildings: While deaths and births are important ...