paragraph_text: Bacteria can be grown in the laboratory on nutrient culture media, but viruses need living cells in which to replicate. Many vaccines to infectious diseases can be grown in fertilised chicken eggs. Millions of eggs are used each year to generate the annual flu vaccine requirements, a complex process that takes about six months after the decision is made as to what strains of virus to include in the new vaccine. A problem with using eggs for this purpose is that people with egg allergies are unable to be immunised, but this disadvantage may be overcome as new techniques for cell-based rather than egg-based culture become available. Cell-based culture will also be useful in a pandemic when it may be difficult to acquire a sufficiently large quantity of suitable sterile, fertile eggs.

paragraph_text: Zachary David Massey (November 14, 1864 – July 13, 1923) was an American politician that represented the 1st congressional district of Tennessee in the United States House of Representatives.

paragraph_text: Federal law requires the Clerk of the House of Representatives to notify each state government of its entitled number of seats no later than January 25 of the year immediately following the census. After seats have been reapportioned, each state determines the boundaries of congressional districts -- geographical areas within the state of approximately equal population -- in a process called redistricting. Any citizen of the State can challenge the constitutionality of the redistricting in their US district court.

paragraph_text: The 1950 South Carolina United States House of Representatives elections were held on November 7, 1950 to select six Representatives for two-year terms from the state of South Carolina. Four incumbents were re-elected, but Hugo S. Sims, Jr. of the 2nd congressional district and James Butler Hare of the 3rd congressional district were defeated in the Democratic primaries. The seats were retained by the Democrats and the composition of the state delegation remained solely Democratic.

paragraph_text: John Wesley Crockett (July 10, 1807 – November 24, 1852), was an American politician who represented Tennessee's Twelfth Congressional District in the United States House of Representatives. It was the same district his father, David Crockett, had represented earlier.

paragraph_text: California's 48th congressional district is a congressional district in the U.S. state of California based in Orange County in Southern California. It is currently represented by Democrat Harley Rouda.

paragraph_text: Texas District 16 of the United States House of Representatives is a Congressional district that serves El Paso and the surrounding area in the state of Texas. The current Representative from District 16 is Beto O'Rourke.

paragraph_text: Samuel Axley Smith was an American politician and a member of the United States House of Representatives for the 3rd congressional district of Tennessee.

paragraph_text: The United States Department of Agriculture defines eight official classes of wheat: durum wheat, hard red spring wheat, hard red winter wheat, soft red winter wheat, hard white wheat, soft white wheat, unclassed wheat, and mixed wheat. Winter wheat accounts for 70 to 80 percent of total production in the U.S., with the largest amounts produced in Kansas (10.8 million tons) and North Dakota (9.8 million tons). The U.S. hard red spring wheat crop is exported to over 70 countries each year to the extent of 55%. Of the total wheat produced in the country, 50% is exported, valued at US $9 billion.

paragraph_text: Dave Crooks is a former member of the Indiana House of Representatives, where he represented the 63rd District from 1996 to 2008. He is currently seeking the Democratic nomination for US Congress in Indiana's 8th Congressional District.

paragraph_text: The members of the House of Representatives serve two - year terms representing the people of a single constituency, known as a ``district ''. Congressional districts are apportioned to states by population using the United States Census results, provided that each state has at least one congressional representative. Each state, regardless of population or size, has two senators. Currently, there are 100 senators representing the 50 states. Each senator is elected at - large in their state for a six - year term, with terms staggered, so every two years approximately one - third of the Senate is up for election.

paragraph_text: Alabama's 10th congressional district is an obsolete district which existed from 1917 until 1933. Its sole representative was William B. Bankhead. (Alabama had a 10th U.S. Representative from 1913 to 1917, but that seat was elected at large.)

paragraph_text: Robert Malone Bugg was an American politician and a member of the United States House of Representatives for Tennessee's 7th congressional district.

paragraph_text: Missouri's 8th Congressional District is one of 435 congressional districts in the United States and one of eight congressional districts in the state of Missouri. The district encompasses rural Southeast Missouri and South Central Missouri as well as some counties in Southwest Missouri. The district stretches from the Bootheel in the south to the St. Louis southern exurbs of Festus, Hillsboro, and surrounding areas in the Lead Belt; it ranges in the east to counties along the Mississippi River and in the west to counties along the Ozark Plateau near Branson.

paragraph_text: James Calvin McDearmon (June 13, 1844 – July 19, 1902) was an American politician and a member of the United States House of Representatives for the 9th congressional district of Tennessee.

paragraph_text: David Whitaker is an American politician and a Democratic member of the Arkansas House of Representatives representing District 85 since January 14, 2013. Whitaker was a candidate for United States House of Representatives for Arkansas's 3rd congressional district in the 2010 election.

paragraph_text: Kansas's 4th Congressional District is a Congressional District in the U.S. state of Kansas. Based in the south central part of the state, the district encompasses the city of Wichita and surrounding areas.

paragraph_text: There were 12 United States congressional districts in New Jersey based on results from the 2010 Census. There were once as many as 15. The fifteenth district was lost after the 1980 Census, the fourteenth district was lost after the 1990 Census, and the thirteenth district was lost after the 2010 Census.

paragraph_text: Missouri's 5th Congressional District has been represented in the United States House of Representatives by Democrat Emanuel Cleaver, the former Mayor of Kansas City, since 2005.

paragraph_text: Kansas is currently divided into 4 congressional districts, each represented by a member of the United States House of Representatives. The number of districts in Kansas remained unchanged after the 2010 Census.

Question: How many congressional districts are there in the state where most wheat is grown in the US?
Answer: 4