BIO 251 - Unit Exam 1: Part 1. Questions and Answers.

Bio 251 Unit Exam 1 part 1
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Part 1 of 3 - Part 1 30.0/ 30.0 Points
From chapter 17

Question 1 of 50
2.0/ 2.0 Points
Hormones regulate certain target cell responses. These can include which of the following?



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A. Metabolism



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B. All of the above are correct.



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C. Fluid balance



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D. Sexual function



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E. Growth and development of tissue



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Question 2 of 50

,2.0/ 2.0 Points
The function of the placental hormone human placental lactogen (hPL) is to ________.





A. prepare the breasts for lactation



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B. nourish the placenta



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C. regulate the menstrual cycle



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D. help the placenta to mature





E. All of the above are true.



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Question 3 of 50
2.0/ 2.0 Points
In contrast to the nervous system, the endocrine system uses only one method of
communication: _________ signaling.





A. direct

, 

B. “hard wired”





C. electrical



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D. transmitter





E. chemical



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Question 4 of 50
2.0/ 2.0 Points
Cushing’s disease is a disorder caused by ________.



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A. abnormally high levels of epinephrine



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B. abnormally high levels of aldosterone



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