Which crop leaves soil with the lowest levels of nitrogen?

Which element is found in both dna and proteins

Nh3 +02-no + h20 is unbalanced what is the balanced equation

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of