Question

the naked mole - rat is a mammal that lives in underground colonies in eastern africa. colonies typically consist of a single reproductive queen, a few reproductive males, and their offspring. the queen can have a litter of pups every three months. individuals rarely emigrate from their colony, and colonies rarely receive new immigrants. this graph shows the growth of a naked mole - rat population over a 12 - month period. naked mole rat population select all the statements about this population that are supported by the graph. the population grew by roughly the same number of individuals every three months. more individuals joined the population than left the population. population growth was positive. more individuals emigrated than immigrated.

Explanation:

Step1: Analyze population - growth pattern

Check the increase in population at 3 - month intervals. From 0 to 3 months, population increases from 24 to 27 (increase of 3). From 3 to 6 months, from 27 to 30 (increase of 3). From 6 to 9 months, from 30 to 33 (increase of 3). From 9 to 12 months, from 33 to 36 (increase of 3). So the population grew by roughly the same number of individuals every three months.

Step2: Consider net - change in population

Since the population is increasing over time (from 24 to 36 in 12 months), more individuals joined the population than left the population and population growth was positive.

Step3: Evaluate emigration and immigration

The text states that individuals rarely emigrate from their colony and colonies rarely receive new immigrants. The graph does not provide any information about emigration and immigration, so we cannot conclude that more individuals emigrated than immigrated.

Answer:

• The population grew by roughly the same number of individuals every three months.
• More individuals joined the population than left the population.
• Population growth was positive.