Using a punnet square we can compare the parents' genes. I will use the letter s to represent the shell color.
S s
s Ss ss
s Ss ss
We can now see that there is a fifty fifty chance the offspring will be either color.
In the stomach, food undergoes chemical and mechanical digestion. Peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion). As food travels from your mouth into your digestive system, it's broken down by digestive enzymes that turn it into smaller nutrients that your body can easily absorb. This breakdown is known as chemical digestion.
It has something to do with DNA strands