Challenge Yourself A study was carried out on the success rate of different birth control methods in preventing pregnancy. The results are shown in the graph below. 1. 100 Vasectomy 98 96 Tubal ligation Success rate (%) 94 Contraceptive pill 92- 90- Condom 88 de Rhythm method 86 Birth control method (a) Based on the graph, which birth control method is most effective and which birth control method is least effective? The most effective birth conmol is Vasectom y The least effeCTive memad s birth contro). (b) Briefly explain why the least effective method of birth control may fail to prevent pregnancy. int: A woman's menstrual cycle may become irregular due to various reasons.)

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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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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理太
Challenge Yourself
1.
A study was carried out on the success rate of different birth control methods in preventing
pregnancy. The results are shown in the graph below.
100
E Vasectomy
98
96
Tubal ligation
Success
rate (%) 94
: Contraceptive pill
92
90-
| Condom
88
E Rhythm method
86
Birth control method
(a) Based on the graph, which birth control method is most effective and which birth control
method is least effective?
The most effective birth contralis Vasectomy The least effective memod
s birth cotro).
(b) Briefly explain why the least effective method of birth control may fail to prevent pregnancy.
(Hint: A woman's menstrual cycle may become irregular due to various reasons.)
worle wolod
metaya ov
(c) Briefly explain why the most effective method of birth control in (a) may not be suitable
for every couple.
(d) Suggest a temporary method of birth control that is 100% effective. Explain why this
method is fail-safe.
Transcribed Image Text:理太 Challenge Yourself 1. A study was carried out on the success rate of different birth control methods in preventing pregnancy. The results are shown in the graph below. 100 E Vasectomy 98 96 Tubal ligation Success rate (%) 94 : Contraceptive pill 92 90- | Condom 88 E Rhythm method 86 Birth control method (a) Based on the graph, which birth control method is most effective and which birth control method is least effective? The most effective birth contralis Vasectomy The least effective memod s birth cotro). (b) Briefly explain why the least effective method of birth control may fail to prevent pregnancy. (Hint: A woman's menstrual cycle may become irregular due to various reasons.) worle wolod metaya ov (c) Briefly explain why the most effective method of birth control in (a) may not be suitable for every couple. (d) Suggest a temporary method of birth control that is 100% effective. Explain why this method is fail-safe.
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