It depends in if a bio page can belong to more than one team. On the Bio page you can add a Post Object or Relationship field for the Team. Or you can put a Relationship field on the Team to select team members. There is some information here https://www.advancedcustomfields.com/resources/querying-relationship-fields/.
You might also create a 2 way relationship by using this as and example https://github.com/Hube2/acf-filters-and-functions/blob/master/acf-reciprocal-relationship.php or you could use this https://github.com/Hube2/acf-post2post. There are also some additional 2 way relationship fields for ACF if you do a search for them.
