Question

A particular population of kangaroos has 1000 births during this year; 72 individuals also join the population while 108 leave. There are 345 deaths. Work out the growth rate for this population of kangaroos for this year.

Answer 1

Answer:619 individual / year

Explanation:

We will add up the birth and immigration(individual coming from outside)

and we will minus the death and emigration(individual going away)

Since, the year in question is only 1 . we will divide the change in population by 1.

Growth rate  =  (1000+72-108-345) / 1 = 619