Multiple Choice
What is the source of the hormones that, when suddenly absent, are directly responsible for the onset of menstruation?
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44. Animal Reproduction
Animal Reproduction
Multiple Choice
In many mammals, the testes are located outside the abdominal cavity within the scrotum because __________.
A
the elevated pressure within the abdominal cavity would collapse the small passageways within the testes
B
this location allows for a shorter pathway to the urethra
C
blood flow to the scrotum is not interrupted during erection
D
of all of the listed reasons
E
sperm are unable to mature properly at the higher temperatures found within the abdominal cavity
Verified step by step guidance1
Understand the role of the testes in mammals: The testes are responsible for producing sperm and hormones like testosterone.
Recognize the importance of temperature in sperm production: Sperm production and maturation require a temperature slightly lower than the normal body temperature.
Identify the function of the scrotum: The scrotum acts as a climate control system for the testes, keeping them cooler than the body's core temperature.
Consider the anatomical location: The testes are located outside the abdominal cavity in the scrotum to maintain an optimal temperature for sperm development.
Conclude with the reason: The primary reason for the testes being outside the abdominal cavity is to ensure that sperm can mature properly at a cooler temperature than that found inside the body.
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