Because the three-horned alien is heterozygous, we know that three must be dominant to four, because the gene for the three horns is "hiding" the gene for four horns. Therefore, the three-horned alien has the genotype Tt (T for three horns, and t for four horns). The four horned alien must be tt, because that is the only way that a recessive trait may be seen. If you solve the punnet square on a cross between Tt and tt, you end up with half three (heterozygous) and half four (homozygous recessive) it is a bit easier to explain with something a little "closer to home" if you want me to explain it again, just say so, I don't mind!
<span>Phagocytosis of the microbes that enter the body or tissues. Also lymphocytes build specific antibodies against microbes.</span>
This helps by the production of more insulin, by inserting the insulin producing gene into the bacterium, which expresses and result in higher productions of insulin, which can be extracted, purified and used by the people having diabetes.
Is unequally distributed because most the population lives by oceans and most live in large cities. Also for countries some countries will only have a few million or a few hundred million while countries like China have more than 2 billion.
The doughnut because it contains carbohydrates