The largest time unit in the geologic time scale is the
a. epoch. b. era. c. period. d. eon.

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.

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.