when we observe an organism or environment what are we observing A. changes B. similarities C. colors

What is the importantence of the carbon and nitretan cycles in the environment

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

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.