The North and the South were the two main sections of the US in the early 1800s up to the point of the Civil War.
Not sure about both but in the early 1800's textiles was a huge industry.
The two main religions of India are Hinduism and Sikhism.
Northern merchants were the main supporters of the Federalists in the newly emerged two-party system.
Red and yellow
A Halfcrown (Two Shillings and Sixpence) GBP in 1800 had the purchasing power of about £6.76 GBP today. NOTE - This historical conversion is the result of many calculations and considerations by a purpose designed program. The resulting answer should only be regarded as an approximation based on current exchange rates.
abdomen
veins and arteries
Not sure about both but in the early 1800's textiles was a huge industry.
The float bowl and the venturi tube
the first one is called the cephalothorax
Two main ones - New and Old Testaments.
there are far more than two main kinds of submarines. The only two sections I can think of to separate them are fast attack and Boomers or Ballistic Missle.
The two main parties in America in !800 were the Democratic-Republicans and the Federalists.
The war of 1812 and The Civil War in the early 1860s.
Mothers and fathers
Unlike COBOL, in C there are no sections and divisions; there are two main state: inside a function and outside of any functions.
The Italian Riviera's second name is the Ligurian Riviera. The Riviera is divided into a variety of sections with two of the main sections being located in Genoa.