Question

by tracking births, deaths, immigrants, and emigrants, scientists can measure population growth.
population growth = (births + immigrants) - (deaths + emigrants)
imagine a population of 11 chickens (1 rooster and 10 hens) living on a farm. over the course of one month, 20 new chicks were born into the flock, 3 of which died. the farmer added 1 new hen to the flock. what was the population growth over this month - long period?
chickens

Explanation:

Step1: Identify values for births, immigrants, deaths, emigrants

Births = 20, Immigrants = 1 (the new hen added), Deaths = 3, Emigrants = 0 (no chickens left the flock).

Step2: Apply the population growth formula

Population growth = (births + immigrants) - (deaths + emigrants) = (20 + 1) - (3 + 0)

Step3: Calculate the result

(20 + 1) - (3 + 0) = 21 - 3 = 18

Answer:

18