What is the independent variable (cause) is this experiment? "Which type of medium (soil or sand) is best for plant growth?"

Question 6 options:

type of medium (soil or sand)

height of plant

types of plant

amount of medium (soil or sand)

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.