Which type of fossil does this image depict? A.
cast
B.
carbon imprint
C.
mineralized fossil
D.
original-tissue fossil

Why do bacteria thrive even in hostile environments

Isolated volcanic peaks on the ocean floor are

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.