Answer:
Fraternal twins are “dizygotic,” meaning that they developed from two different eggs fertilized by two different sperm cells, while identical twins are “monozygotic” i.e., they developed from a single fertilized egg that split.
Explanation:
Stomach acid is one of the harshest conditions to live in and the mucus layer is what keeps our stomach from digesting is from the inside because it forms a protective barrier so by living there, they would be protected and not exposed to the acid
An example would be a polar bear trying to hide in the jungles. Its camouflage is white for it to blend in with snow, which is white, but the jungle is mainly green. So it would be easily spotted