Answer:
Migration happens as living beings move in and out of an range in a regular design. The entry makes an increment in populace estimate and the exit causes a diminish. In this way the populace measure increments and diminishes in a normal design.
Explanation:
Migration causes population size to change cyclically over time because the two components of migration vary with time.
There are 2 components of migration:
Hence, when the number of people coming into a population is more than the number of people leaving the population, the population size increases. On the other hand, when the number of people leaving a population exceeds the number of people coming in, the population size decreases.
Thus, migration causes population size to change cyclically because immigration and emigration rates vary with time.
More on migration can be found here: https://brainly.com/question/20063668
