BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 41, Problem 2CT
Summary Introduction
To determine:
The reason behind the increased level of FSH that raises the likelihood of fraternal twins.
Introduction:
The FSH (Follicle Stimulating Hormone) is released by the gonadotropic cells of anterior pituitary gland. FSH helps in the regulation of sexual development, pubertal maturation, growth, and reproductive processes in an individual. FSH plays an important role in the maturation of germ cells, initiate follicular growth and induces ovary to produce estrogen.
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Chapter 41 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 41 - The type of place where a species typically lives...Ch. 41 - Which cannot be a symbiosis? a. mutualism c....Ch. 41 - Lizards that eat flies they capture on the ground...Ch. 41 - ________ can lead to resource partitioning. a....Ch. 41 - Prob. 5SACh. 41 - Prob. 6SACh. 41 - Prob. 7SACh. 41 - By the currently favored hypothesis, species...Ch. 41 - Growth of a forest in an abandoned corn field is...Ch. 41 - Prob. 10SA
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- Data:Total Births: 2,700 Low Birth Weight: 264Mothers with inter-gestational interval < 12 months: 92Mothers with low birth weight with inter-gestational interval < 12 months: 21Mothers with previous HTN: 18Mothers with low birth weight with previous HT: 15 A) Global or absolute risk of low birth weight.B) Relative risk for the factor "inter-gestational interval < 12 months". According to the results obtained, give your opinion as to whether there is an association or not and express it accordingly.C) Relative risk for the factor "mothers with previous HTN". According to the results obtained, give your opinion as to whether or not there is an association and express it accordingly.D) In the case of the factors in which you consider, according to the results obtained, that there is an association, calculate the Attributable Risk (AR) and the Etiological Risk Fraction (ERF), expressing in both cases their significance.arrow_forwardWhat is evidence that menopause is an adaptive cooperative trait? In humans, the presence of reproductive (fertile) grandmothers probably increases the survival rate of their grandoffspring. O In killer whales, the presence of reproductive (fertile) grandmothers increases the survival rate of their grandoffspring. In both humans and killer whales, the presence of non-reproductive grandmothers probably increases the survival rate of their grandoffspring. In humans, the presence of reproductive (fertile) mothers increases the survival rate of their reproductive grandparents.arrow_forwardSuppose you are a carrier of fragile X syndrome and want to have children. Would you choose pregnancy, adoption, or surrogacy? If you became pregnant, would you opt for prenatal diagnosis? Explain your decisions.arrow_forward
- Please answer this question.arrow_forwardThe period of female fertility during each Month is short For fextilization to take place intercouce must occur each a) A few hours before ovalation up to 4-5 days after avulation b) Around 24 hours before ovulation up to around. 24 hours after ovulation C) Sometimes between 2-3 days before ovulation upto 2-3 days after ovulation d) Around 4-5 days before ovulation upto a few hours after ovulation E) Around 4-5 days before ovulation upto 4-5. after ovulation.arrow_forwardThe change of successful fertilization is approximately 18% in every cycle. Why does this statistic seem so low? All of the following statements provide a reason as to why the chance of fertilization is 18% every ovarian cycle EXEPT Select one: A. Some Sperm cells are not very motile, while others are formed without a tail. B. If more than one sperm fertilizes an egg, multiple embryos can result. C. Vagina is very acidic, killing many sperm. D. There two fallopian tubes and two ovaries, but only one of them releases an ovum every cycle.arrow_forward
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