No. Although both bishops and cardinals have their own roles within the church, there is a heirachy within the church. Basically, bishops are the head a a diocese (a group of churches across a region), a cardinal on the other hand has an additional responsibility that when a pope needs to be selected they are able to be part of the college of cardinals who do the voting.
Yes and no. All cardinals are bishops and all cardinals under age 80 are eligible to vote in the conclave. However, not all bishops are cardinals.
There is a college of cardinals but not a college of bishops.
Yes, all bishops, including cardinals and the pope wear mitres.
All cardinals are bishops or archbishops.
The ones wearing purple are not cardinals, they are bishops.
Bishops that elect the pope are called cardinals.
All the cardinals and bishops council the pope when required or asked.
Cardinals elect Popes, but they are not necessarily bishops.
They are the Pope, Bishops and the Cardinals all over the world.
They were Priests, Monsignors, Bishops, and Arch-Bishops
The Pope chooses all Cardinals in the Roman Catholic Church. He also appoints all Bishops.
Priests, Deacons, Bishops, Cardinals, Monsignor's, the Pope, are all members of the Catholic clergy.