Acelestial body is any natural (i. e., not man-made) object in the sky. which celestial bodies orbit the sun? i. asteroids ii. comets iii. meteoroids iv. planets a. i, ii, and iii only b. i, ii, iii, and iv c. iv only d. ii, iii, and iv only

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.