How much energy is available for the next available level as moving upward through the biomass pyramid?

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

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.

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?