Nothing really. There is no blood relationship between the two.
Yes.
They have the same mother and different fathers.
A half-brother (or half-sister) is one with whom you share only one parent, i.e. you have the same mother but different fathers or the same father but different mothers.
Not full brother and sister, but in sharing the same blood line ofthe mother, you are considered to be related by half of the parentage, in this case, on the mother's side. Whether one becomes full brother/sister is a matter of love,compassion, acceptance, and the half factor becomes a matter only of legality. You are half brother and sister. You share your mothers blood but not your fathers.
it makes sense
They are half siblings.
yes it's just a coincidence that you have the same blood type cos you inherited half the genes of your mother
A stepsister is one where there are no blood ties, only related by marriage. If you are both a natural child of one of the parents then it would make you half sisters. Same mother, different fathers. Same father, different mothers.
Your half-brothers and half-sisters (half-siblings) are called half because instead of having the same mother and the same father as you, you have only one parent in common. Thus, you have half the common parentage that full siblings have. Half-siblings have the same father and different mothers, or the saem mother and different fathers.
They may be distant relatives, but they are not brother and sister (different mothers and fathers) or husband and wife (She is married to Keith Lieberthal).
Goldenflower. He is the half-brother to Brambleclaw and Tawnypelt. Goldenflower had a unknown tom as her mate and gave birth to Swiftpaw. Then, Goldenflower had another mate, Tigerstar. She gave birth to Brambleclaw and Tawnypelt. Brambleclaw, Tawnypelt, and Swiftpaw shared same mother, but had different fathers.
Yes, because they the same mother - but different fathers. So they have different last names.