Yes, they are half siblings. Zeus is the father of all of them, but Athena has a different mother than Apollo and Artemis. Athena's mother is Metis, while the mother of Apollo and Artemis is Leto.
Apollo's twin sister is Artemis. Athena is their half sister.
Artemis, Athena, Dionysus
Apollo had one twin sister. Her name was Artemis.
Artemis is the (older) twin sister of Apollo.
Apollo did have a twin sister. His sister was Artemis. Her Roman name is Diana.
Apollo's twin sister is Artemis. Athena is their half sister.
No, but Apollo and Artemis are step-brothers
There is no Greek god named Appolo. You might have meant Apollo. Apollo was a twin to Artemis, they were the children of Leto and Zeus. Athena the daughter of Zeus was a half sister.
Was Artemis the twin sister of Apollo.
No, Apollo's twin sister was Artemis.
No, that is Athena's sister Artemis.
Yes, Apollo had a twin sister named Artemis.
Apollo had one twin sister. Her name was Artemis.
Artemis, Athena, Dionysus
No. Athena was a virgin goddess like Artemis and Hestia and Apollo ever got married.
No; Apollo's only twin sister is Artemis.
Artemis is the (older) twin sister of Apollo.