What do you predict will be the proportion of birds with beaks that are 11mm or longer in another five years, if the environmental conditions stayed the same? Use mathematics to support your answer by first calculating the rate at which the proportions are changing.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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EVOLUTION ASSESSMENT - FINCHES
Galápagos Ground Finches
Between 1973 and 1978, the population of ground finches (a type of small bird) on the Galápagos Islands
decreased. Scientists made observations of the population throughout that time period. They recorded
and graphed differences in the distribution of traits over time. The two sets of graphs below come from
the data they collected.
Beak Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978
Wet 1973: all finches
# of finches
30
# of finches
25
20
15
10
5
0
30
25
20
15
10
5
12-01
0
$4.9
80-84
30.0-
11.5-11.9
Beak Length (mm)
Source: inquiryHub
35.0-39.9
40.0-44.9
12.5-12.9
13.0-13.4
13.5-13.9
14.0-
Wing Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978
Wet 1973: all finches
65.0
Wing Length (mm)
Source: inquiryHub
70.0-74.9
# of finches
75.0-
30
25
# of finches
20
10
5
0
30
25
20
15
O
10
5
0
Wet 1978: all finches
7.0-74
7.5-7.9
80-8.4
85-80
9.0-94
9.5-9.9
10.0-1
30.0-34.9
10.5-10.9
11.0-11.4
11.5-11.9
12.0-12.4
12.5-
Beak Length (mm)
Source: inquiryHub
Wet 1978: all finches
Wing Length (mm)
Source: inquiryHub
13.0-13.4
13.5-13.9
14.0-
75.0-
Transcribed Image Text:EVOLUTION ASSESSMENT - FINCHES Galápagos Ground Finches Between 1973 and 1978, the population of ground finches (a type of small bird) on the Galápagos Islands decreased. Scientists made observations of the population throughout that time period. They recorded and graphed differences in the distribution of traits over time. The two sets of graphs below come from the data they collected. Beak Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978 Wet 1973: all finches # of finches 30 # of finches 25 20 15 10 5 0 30 25 20 15 10 5 12-01 0 $4.9 80-84 30.0- 11.5-11.9 Beak Length (mm) Source: inquiryHub 35.0-39.9 40.0-44.9 12.5-12.9 13.0-13.4 13.5-13.9 14.0- Wing Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978 Wet 1973: all finches 65.0 Wing Length (mm) Source: inquiryHub 70.0-74.9 # of finches 75.0- 30 25 # of finches 20 10 5 0 30 25 20 15 O 10 5 0 Wet 1978: all finches 7.0-74 7.5-7.9 80-8.4 85-80 9.0-94 9.5-9.9 10.0-1 30.0-34.9 10.5-10.9 11.0-11.4 11.5-11.9 12.0-12.4 12.5- Beak Length (mm) Source: inquiryHub Wet 1978: all finches Wing Length (mm) Source: inquiryHub 13.0-13.4 13.5-13.9 14.0- 75.0-
Question 6.
What do you predict will be the proportion of birds with beaks that are 11mm or longer in another five
years, if the environmental conditions stayed the same? Use mathematics to support your answer by first
calculating the rate at which the proportions are changing.
Transcribed Image Text:Question 6. What do you predict will be the proportion of birds with beaks that are 11mm or longer in another five years, if the environmental conditions stayed the same? Use mathematics to support your answer by first calculating the rate at which the proportions are changing.
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