When measured orally the average normal temperature is considered to be:

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#Question id: 3346

#Unit 11. Evolution and Behavior

Which of the following is NOT an assumption of the Hardy- Weinberg model?

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#Question id: 11757

#Unit 7. System Physiology – Animal

Which of the following tends to decrease potassium secretion by the cortical collecting tubule?

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#Question id: 1232

#Unit 4. Cell Communication and Cell Signaling

Which of the following mutations might confer a competitive advantage to an athlete by raising his or her hematocrit?

a. excess production of erythropoietin                       

b. decreased production of erythropoietin

c. EpoR that cannot bind STAT5                  

d. EpoR that cannot bind SHP1

e. EpoR that cannot bind JAK2

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#Question id: 13125

#Unit 10. Ecological Principles

Which of the following statements is consistent with the principle of competitive exclusion? 

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#Question id: 12463

#Unit 10. Ecological Principles

Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems?