PLEASE HELPp with this science bs)

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.

Which describes a group of organisms that is considered a species

Why is there more biomass at the producer level that at the consumer levels ? how does this relate to the 10% rule ?