#Question id: 11752
#Unit 7. System Physiology – Animal
Which of the following substances enhances the sensitivity of pain receptors but does not directly excite them?
#Question id: 24623
#Unit 2. Cellular Organization
#Question id: 7019
#Unit 5. Developmental Biology
During primary sex determination in mammals, the bipotential gonad is moved into the female pathway (ovary development) by the Wnt4 and Rspo1 genes, which promote accumulation of:
#Question id: 4026
#Unit 3. Fundamental Processes
The human genome encodes transcription factors that contain an acidic activation domain that is phosphorylated in response to increased levels of the second messenger cAMP. Which one of the following contains one of these activation domains?
#Question id: 26852
#Unit 10. Ecological Principles