Question

Using the figure below, which of the following statements best explains why the prairie chickens of Illinois experienced a decrease in percentage of egg hatching in the late 1980's and early 1990's? (type a 1, 2 or 3 in the blank)

1.prairie chickens were being hunted by humans as a food source and delicate plumage

2. prairie chickens became susceptible to the avian bird flu

3.prairie chicken suffered from genetic drift and habitat loss which produced unfit males

Which of the following occurred at the point of "Translocation" that increased the hatching percentage of eggs in the mid 1990's?

1.gene flow from another population

2.mutation of a beneficial gene

3.genetic drift of more fit genes

200 150 100 Translocation Z 50- 1970 1975 1980 1985 1990 1995 Year Population dynamics 100, 80 2 70 60 50 40 30 1970-'74 '75-79 80-84 85-89 90'93-97 Years Hatching rate

Answer 1

the answer for the first question is

3.prairie chicken suffered from genetic drift and habitat loss which produced unfit males

the answer for the second question is

3.genetic drift of more fit genes