#6.Black-tailed prairie dogs used to be found in Alberta, but due to their destructive nature on farmland, the intensive efforts by ranchers and farmers to eradicate these animals has reduced the species to being found only in Saskatchewan.
A farmer in Saskatchewan samples a population of black-tailed prairie dogs living in his field. Based on several samples, he finds an average of 9 prairie dogs living in an area of 7.0 m2.
If he knows that his field is 4,000 m2, what is the approximate size of the prairie dog population?
Select one:
a. 571 prairie dogs
b. 444 prairie dogs
c. 3 111 prairie dogs
d. 5 143 prairie dogs
#8.In 2011, the city of Calgary had 1,096,833 people living within the city limits. Since then, there have been 245,678 births and 189,753 deaths. A total of 159,753 people moved to Calgary from other cities or countries, while only 12,354 people moved away from Calgary.
How did the population of Calgary change since 2011?
Express your answer using scientific notation in the form of x.yz x 10d people.
x,y,z,d
#9.Eastern loggerhead shrike is a critically endangered species of bird in Canada. Its population has been declining since the 1960s, and it has been speculated that habitat loss, pesticide usage combined, and climate change have affected the shrike population size.
In 2004, there were approximately 70 loggerhead shrikes breeding in Canada. Over the next five years, 85 new shrikes were born, 40 died, and 10 left the area.
Calculate the change in the population of eastern loggerhead shrike between 2004 and 2009.
Express your answer rounded to the nearest whole number.
Please help me out with these 3 questions, as to i am very confused on how to even answer them i started this topic yesterday. Thank you and have a great evening
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