#Question id: 11547
#Unit 7. System Physiology – Animal
A cluster of tumor cells that produces and secretes growth factors to induce surrounding cells to grow and divide is showing which type of cell-to-cell signaling?
#Question id: 255
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 2075
#Unit 2. Cellular Organization
The force driving simple diffusion is:
#Question id: 10183
#Unit 1. Molecules and their Interaction Relevant to Biology
#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