What effect do scientists believe global warming will have on the ecosystems of our planet?
a. it will decrease or eliminate habitability.
b. it will increase or expand plant life.
c. it will increase or expand the availability of consumers.
d. it will decrease or eliminate the need for producers.

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.