All of the following contributed to speciation in darwin's finches except
a. changes in gene pools.
b. geographic isolation.
c. lack of competition.
d. behavioral isolation.

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.