Question

In a population of bison, the birth rate over one year is fourteen. No bison immigrate into the population that year. Twenty bison die during the harsh winter, and ten more leave the population in search of more food. What has occurred in this population over one year?

The size of the population has increased.
The size of the population has decreased.
The size of the population has remained the same.

Answer 1

Answer:

the size of the population decreased

Explanation:

if the population begins at 100 bison at the beginning of the year and the birth rate is 14/year; this means 20+10 have died or roamed away from the population and 14 have been born. that leaves 84 bison at the end of the year.

Answer 2

It's B. The size of the population decreased.