In muscle, glycogen phosphorylase kinase can be activated by nerve stimulation even in the absence of hormonal signals. Nerve stimulation alone results in activation of glycogen phosphorylase kinase as a result of:

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#Question id: 20713

#Unit 12. Applied Biology

Under anaerobic conditions and in the presence of what microbial electron transfer and respiration can proceed if suitable exogenous electron acceptors are available

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#Question id: 15145

#Unit 4. Cell Communication and Cell Signaling

Which of the following drug causes autoimmune hemolytic anemia?

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#Question id: 10978

#Unit 7. System Physiology – Animal

Which of the following events occurs at the end of the period of ventricular ejection?

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#Question id: 12426

#Unit 10. Ecological Principles

In an ecosystem, fixed carbon has accumulated in the form of organic matter derived from dead plants and animals. Which of the following is the best explanation for this observation? 

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#Question id: 4492

#Unit 3. Fundamental Processes

If an enhancer activates a specific gene 400 kb away, what stops it from activating other genes whose promoters are within that range?