In the 1930’s and 1940’s a new Whooping Crane breeding ground in Texas was disco
ID: 169587 • Letter: I
Question
In the 1930’s and 1940’s a new Whooping Crane breeding ground in Texas was discovered, which contained about 25 Whooping Cranes. Their numbers started to steadily climb in the 1960’s and 70’s. In 1980, there were 75 individuals reported, and by 2000, there were 150 reported. If their population growth continued at the same rate and the population is not limited by any carrying capacity due to the environment, based on the population values in 1980 and 2000, how many Whooping Cranes would you predict to see by 2040?
1,200
75
300
600
225
1,200
75
300
600
225
Explanation / Answer
Ans d 600
As the population we see is on steady increase rates, it doubled in nearly 20 years time frame from 1980 to 2000 that is from 75 to 150, so then by 40 years time frame it should be quadrupled that of population observed in 2000 so it should be 600
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