1. What is the major way, by which the monomeric G protein Ras is activated in receptor tyrosine kinase signaling

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Will ! a cell containing a 3% sucrose solution is placed into a beaker containing a 7% sucrose solution. assume the cell’s membrane is permeable to water, but not permeable to the sucrose. where will the water diffuse? explain.