Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 42.5, Problem 1TYK
Summary Introduction
Introduction:
Fisher’s principle is an evolutionary concept, which describes the expected sex ratio of the males and the females in the population of a sexually reproducing individual.
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Sea turtles exhibit temperature-dependent sex determination, meaning that ambient temperatures control whether or not a
developing turtle embryo will become male or female. The data table reflects the numbers of turtle offspring counted in Year 1
and Year 2 of a study.
Male
Female
Year 1 180
20
Year 2 164
33
What type of test can scientists use to assess whether or not the ratio of male to female sea turtles is dependent upon the
year?
O ANOVA
O Chi-square contingency
O 2-sample t test
O Chi-square goodness of fit
Examine the age structure diagram. This diagram best represents a population that is:
100+
Male
Female
01% |0.2%
C.6%
95-99
9D-94
03%
1.%
19%
22%
1.3%
75-79
1.7%
70-74
23%
2.7%
65-69
2.7%
3.0%
60-64
3.0%
3.3%
55-59
3.5%
3.7%
5D-54
3.8%
3.9%
4549
4.0%
39%
4044
3.6%
3.8%
35-39
3.4%
3.4%
3D 34
3.0%
2.9%
25-29
2.8%
2.6%
2D24
2.%
2.5%
15-19
2.5%
2.4%
10-14
2.6%
2.5%
5-9
25%
2.5%
2.0%
2%
4%
0-4
22%
10%
10%
Southern Europe - 2019
Population: 152,446,950
PopulalionPyramid.net
growing quickly
growing slowly
not growing/is stable
declining
[itemB5] (refer to the photo below) Which has a longer life expectancy - fish or oysters?
Chapter 42 Solutions
Principles of Biology
Ch. 42.1 - Prob. 1CCCh. 42.1 - Prob. 1BCCh. 42.1 - Prob. 2CCCh. 42.1 - Prob. 1TYKCh. 42.1 - Prob. 2TYKCh. 42.1 - Prob. 3TYKCh. 42.2 - Most terrestrial mammals are nocturnal. This means...Ch. 42.3 - Prob. 1CCCh. 42.3 - Prob. 1TYKCh. 42.3 - Prob. 2TYK
Ch. 42.3 - Prob. 3TYKCh. 42.4 - Prob. 1CCCh. 42.4 - Prob. 2CCCh. 42.4 - Prob. 1TYKCh. 42.4 - Prob. 2TYKCh. 42.5 - Prob. 1TYKCh. 42.5 - Prob. 2TYKCh. 42 - Prob. 1TYCh. 42 - Prob. 2TYCh. 42 - Prob. 3TYCh. 42 - Prob. 4TYCh. 42 - Prob. 5TYCh. 42 - Prob. 6TYCh. 42 - Prob. 7TYCh. 42 - Prob. 8TYCh. 42 - Prob. 9TYCh. 42 - Prob. 10TYCh. 42 - Prob. 1CCQCh. 42 - Prob. 2CCQCh. 42 - Prob. 3CCQCh. 42 - Prob. 1CBQCh. 42 - Prob. 2CBQ
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