Which of the following factors would affect population distribution but not size in a given country?

Option B) individuals moving from one region of the country to another region of the same country.

Explanation:

All the other options affect the size of population in that:

- increased death rate

It reduces the total number of individuals living at a point in time

- individuals moving from this country to another country i.e Emigration

Of course, the total number of individuals reduces as some move out of a country

- increased birth rate

This raises the total number of individuals living at a point in time.

On the other hand, the distribution of individuals in a population is affected by the movement from one region of the country to another region of the same country. For instance: the movement from rural areas to urban areas affects only the distribution of people not the size of the population.

hello which   of the following there is nothing!

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation: