Scientists thought that the reason children in early studies developed leukemia was because of the viral vectors and oncogenes they contained. These oncogenes stimulated cells to reproduce therapeutic DNA. How did this cause leukemia?

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

the answer is c. altitude. hope this ! #brainiac

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.