The table below shows the concentration of some of the sex hormones in the blood of a cow (mammal) over a period of 24 days. concentration of hormone in the blood (arbitrary units) oestrogen 14 time (days) progesterone LH 32 1 1 4 4 7 1 10 14 18 7 1 1 10 7 1 12 19 7 1 14 19 7 1 16 18 20 22 24 18 7 1 18 1 32 32 1 1 14 1 With reference to the information given in the table, estimate the length of the cow's menstrual cycle. Give a reason for your answer. At day 0 the LH levels are high. Explain how this caused an increase in the levels of progesterone in the days that followed. How does the level of progesterone in the blood differ if the cow is pregnant? Give an explanation for this difference. Suggest how the data in the table was obtained. Given the data in the table, what advice would you give to the farmer with respect to the best time for his cow to mate to produce a calf? How did you make this deduction?

The table below shows the concentration of some of the sex hormones in the blood of a cow (mammal) over a period of 24 days. concentration of hormone in the blood (arbitrary units) oestrogen 14 time (days) progesterone LH 32 1 1 4 4 7 1 10 14 18 7 1 1 10 7 1 12 19 7 1 14 19 7 1 16 18 20 22 24 18 7 1 18 1 32 32 1 1 14 1 With reference to the information given in the table, estimate the length of the cow's menstrual cycle. Give a reason for your answer. At day 0 the LH levels are high. Explain how this caused an increase in the levels of progesterone in the days that followed. How does the level of progesterone in the blood differ if the cow is pregnant? Give an explanation for this difference. Suggest how the data in the table was obtained. Given the data in the table, what advice would you give to the farmer with respect to the best time for his cow to mate to produce a calf? How did you make this deduction?

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

Chapter42: The Endocrine System

Section: Chapter Questions

Problem 4ITD: Researchers measured prolactin and growth hormone in the blood plasma of six subjects at regular...

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