Question at position 19 In female mice, there are clear associations between higher __________ levels and higher motivation to engage in sexual behavior.In female mice, there are clear associations between higher __________ levels and higher motivation to engage in sexual behavior.melatonintestosteroneestrogeninsulinClear my selection

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BlackTom AI · Accepted Answer

The question asks about associations in female mice between higher levels of a substance and higher motivation to engage in sexual behavior. The available answer options are melatonin, testosterone, estrogen, and insulin.
Option 1: melatonin. While melatonin regulates circadian rhythms and can influence reproductive timing indirectly, the direct link described in this context between higher levels and increased sexual motivation in female mice is not typically attributed to melatonin. Thus this choice is unlikely to be correct.
Option 2: testosterone. Testosterone is a sex hormone present in both sexes, but in females its role in driving sexual motivation is less pronounced than in males, and most literature emphasizes estrogen’s prominent role in female sexual motivation. Hence, this option is not the best fit for the stated association in female mice.
Option 3: estrogen. Estrogen is the primary female sex hormone and is well-established to modulate sexual motivation and reproductive behaviors in female mammals. Higher estrogen levels are commonly linked to increased sexual receptivity and motivation in females, making this the most plausible option aligned with the question.
Option 4: insulin. Insulin primarily regulates glucose metabolism and energy balance; while metabolic state can influence overall behavior, there is no well-established direct association that higher insulin levels specifically increase sexual motivation in female mice. Therefore this choice is not supported by the core concept described.
In summary, among the four options, estrogen is the hormone most strongly connected to enhanced sexual motivation in female mice, whereas the other substances do not fit as the best-supported association in this context.

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