What are the similarities and differences on eastern orthodox and catholic church?

Please will you help me in getting a short answer preferably less than a 2 paragraphs on the similarities and differences thank you.

In the Roman Catholic church, the holy spirit "proceeds from the father and the son."
In the Orthodox church the holy spirit "proceeds from the father."
Roman Catholic priests aren't allowed to marry. Othodox priests can marry.

Organizationally, they're a little different. In the RCC, the Pope has a unique position of authority over all the bishops. In the Orthodox church, there are several Metropolitans who have that kind of authority over parts of the church.

And the masses are a bit different.

Less hokey music in the Orthodox church.

They are the remnant political control mechanisms of The Roman Empire, one of the east and the other of the west. Hence over time one had a Kaiser (Caesar) and a Holy Roman Empire the other a Tsar (Caesar).of the Romanov line.

They are one and the same with a different name.The Catholics changed the Bible over time to deceive the people from the truth.

The Orthodox reject the Pope, and they believe that the Holy Ghost preceded from only the Father, and not the Father and the Son. Other than that, they're pretty much the same.

Watch this. http://www.catholicscomehome.org/epic/epic120.phtml

The Eastern Orthodox faith, whether Greek, Russian, Romanian, or a number of other expressions, is one faith, one Church. Orthodoxy is often characterized as those Christians in communion with the Patriarch of Constantinople, rather than with the Pope of Rome.

The Holy Orthodox Catholic and Apostolic Church and the Roman Catholic Church were one Church for the first millennium of Christianity, so there are many similarities. Common to both are most of the points of the Nicene Creed (http://www.goarch.org/chapel/liturgical_texts/creed):
* belief in the Holy Trinity - Father, Son and Holy Spirit
* the divinity of Jesus Christ
* the Virgin Birth
* the crucifixion and resurrection of Christ
* the ascension of Christ into heaven
* the future return of Christ and the creation of his everlasting kingdom
* eternal life

Similar also are
* the structure of church governance (a hierarchy of of various ranks and responsibilities of bishops, a priesthood, and a donate)Te * the change of communion bread and wine into the body and blood of our Lord Jesus Christ
* baptism in the name of the Father, Son, and Holy Spirit
* liturgical worship forms
* the major sacraments (baptism, marriage, ordination, confession, etc.)
* male-only clergy
* only celibates may become bishops

Beliefs have become different in some areas over the years. The chief differences, and those which precipitated the split between Orthodox Christianity and Roman Catholicism, commonly called the Great Schism of 1054:

Orthodoxy believes
* the Holy Spirit proceeds from the Father (Nicene Creed and John 15:26)
* the patriarchs of the various churches have no ruling bishop over them all, always having been organized by councils/synods of bishops

Roman Catholicism believes
* the Holy Spirit proceeds from the Father and the Son (an addition to the Creed)
* the Pope of Rome is the presiding bishop over all Christianity

Additional post-schism Catholic dogmas, required for Catholics to believe, but that have never been Orthodox dogmas:
* purgatory
* infallibility of the Pope
* the immaculate conception of Mary

There are addition differences in practice that aren't quite dogma:
* Married men may become deacons and priests in the Orthodox Church
* Orthodox fasting practices are more severe
* Orthodoxy uses the Greek Septuagint for Old Testament, and the original Greek for New.

More on the Orthodox Faith can be found here:
http://www.goarch.org/ourfaith/introduction
http://www.orthodoxinfo.com/death/stmark_purg.asp
http://www.orthodoxinfo.com/inquirers/papaldogma.aspx
http://www.orthodoxinfo.com/inquirers/theotokos.aspx