Lead toxicity is more common in low-income children because lead is not as well absorbed when other minerals are lacking. low income children have low intake a fresh fruits and vegetables, which normally bind lead and prevent its absorption. lead is not as well absorbed from an empty stomach of a malnourished child. lead is often found in the paint on the walls of their older homes.

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

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.