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Which of the following neurotransmitters is both excitatory and inhibitory and involved with voluntary movement, addiction, and cognition?

The coronavirus pandemic is an example of a:

Lake Okoboji in northern Iowa is made from what?

Geologists who have studied the land of Iowa believe that Iowa used to lay ______ of the Equator.

What is the name of the Native American tribe for which the state is named?

Iowa is the only state whose north and south borders are 100% formed by water.  Is this statement true or false?

The grass on the prairie could and can grow very tall.  Lieutenant Colonel Stephen Kearney once recorded that the prairie grass was so tall in central Iowa that his soldiers could do what with it?

What vegetable was a major staple for the Ioway Indians?  Remember, it took 1/2 acre of this plant to feed one person and around the year 1700, it was estimated that there were around 1,500 Ioway Indians, so they would have had to plant a lot of this!

The specialized lymph capillaries found in the small intestine are called:

The main nerve involved in inspiration is: