Use the punnett square to predict the phenotype of the offspring if a plant heterozygous for yellow seeds is crossed with a plant homozygous for green seeds?

From the question, yellow is dominant to green.

So the parents are yellow (Yy) and green (yy)

Cross Yy  x yy

Punnet square (I can't put lines):

        Y      y

y      Yy     yy

y      Yy     yy

Phenotypes:

Yy: yellow

yy: green

So you'd see 1/2 yellow and 1/2 green

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

Carbon monoxide is the answer: )