Are plants a source or sink of photosynthesis?

Any sound above what db can cause hearing loss in human beings

The activity of the modern sample is 1.10 bq . how long does that measurement take?

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.