1. Base on the graph below, why might the sex ratio of bird species in the figure change from as they grow from juveniles to adults? 0.5 0.5 40 50 30 40 30 20 20 10 10 0.30 0.36 0.42 0.48 0.54 0.60 Sex ratio 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Sex ratio (b) A) Nesting females are vulnerable to predatory attack. B) Males that are unable to mate die quickly. C) Females are less able to feed effectively as juveniles. D) More females are required to sustain the population. Frequency (a) Frequency I

1. Base on the graph below, why might the sex ratio of bird species in the figure change from as they grow from juveniles to adults? 0.5 0.5 40 50 30 40 30 20 20 10 10 0.30 0.36 0.42 0.48 0.54 0.60 Sex ratio 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Sex ratio (b) A) Nesting females are vulnerable to predatory attack. B) Males that are unable to mate die quickly. C) Females are less able to feed effectively as juveniles. D) More females are required to sustain the population. Frequency (a) Frequency I

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter52: Population Ecology

Section: Chapter Questions

Problem 6TYK: One reason why human populations have been able to sidestep the factors that usually control...

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Question

1. Base on the graph below, why might the sex ratio of bird species in the figure change from
as they grow from juveniles to adults?
0.5
0.5
40
50
30
40
30
20
20
10
10
0.30 0.36 0.42 0.48 0.54 0.60
Sex ratio
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Sex ratio
(b)
A) Nesting females are vulnerable to predatory attack.
B) Males that are unable to mate die quickly.
C) Females are less able to feed effectively as juveniles.
D) More females are required to sustain the population.
Frequency
(a)
Frequency
I

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