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Author Archives: Anonymous

Which mode of chemical signaling uses local chemical mediato…

Which mode of chemical signaling uses local chemical mediators that are quickly taken up, destroyed, or immobilized?

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Which statements are true regarding the effects of marijuana…

Which statements are true regarding the effects of marijuana use? (Select all that apply.)

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Which cAMP-mediated response is related to antidiuretic horm…

Which cAMP-mediated response is related to antidiuretic hormone?

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In this study (Reimann 2025), the researchers wanted to lear…

In this study (Reimann 2025), the researchers wanted to learn if exposure to certain pollutants in childhood can affect the expression of satiety hormones. In particular, they focused on parabens, a class of chemicals commonly used as preservatives in cosmetics. The researchers carried out a simple experiment wherein they measured levels of parabens and satiety hormones in children (4-6 year olds). The following table lists their results: the hormones are listed on the left, and the three different parabens they measured in the second column. You can essentially ignore the complex statistics in the 3rd and 4th columns and you should safely assume the question the table is trying to answer is: are there statistically significant differences in hormone expression in response to exposure to parabens? Based on this figure, what would you advise parents worried about preservatives’ effects on their child’s normal, healthy development?  

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The action of platelet-derived growth factor  (PDGF) is to s…

The action of platelet-derived growth factor  (PDGF) is to stimulate the production of which cells?

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“Wanting” is primarily mediated by

“Wanting” is primarily mediated by

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If a reward is better than expected, dopamine signaling will

If a reward is better than expected, dopamine signaling will

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The Johnson & Kenny (2010) study suggests that overeating re…

The Johnson & Kenny (2010) study suggests that overeating resembles addiction because

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The Human Microbiome Project found that

The Human Microbiome Project found that

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In this paper (Bulk 2025), researchers studied the effects o…

In this paper (Bulk 2025), researchers studied the effects of food odor on satiety pathways. The first experiment was designed to quantify the response to food odor across many different brain regions. Using both PET scans and Fos activation (a readout of neuronal activation), they measured the activity of different brain regions before and after exposure to food odor. In this figure, they report their results. CE/CP is analogous to brain activity or neuronal activation. Based on this figure, which of the following brain regions showed the strongest response to food odor?

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