Tribe or Clan
The name for groups of families with a common ancestor is a clan or a lineage.
Tribe or Clan
Most families would use the first name. There is no real relationship with them as there is no common ancestor. But some families might refer to them as cousins or even nephews, though they aren't.
they are called groups or families
group or family
Animalia
On the periodic table columns are called groups
they are called groups or families
I would call him by his name. You do not share a common ancestor, so are not related.
I usually use their first name. You are not related, as you do not share a common ancestor.
I'd use their name. There is no official name for it. You do not share a common ancestor, so you are not related.
There is no particular name for it, since we do not know exactly what that organism was. We do, however, have a general name LUCA, which stands for Last Universal Common Ancestor, meaning the last living thing that was the ancestor of all life on Earth.