What do scientists that are working towards mitigating the effects of climate change have to argue against? why are changes in fossil fuel regulations not being made? answer in 3-4 sentence

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

What is turgor pressure, what causes it, and what does it do for a plant?

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.