The part of the brain that is being <span>tested when a police officer asks a DWI suspect to walk a straight line and touch his nose with his finger is the primary motor cortex. The motor cortex has to do with movement and balance - so obviously, if you need to prove that you can walk a straight line, which involves both of these things, or if you need to move your finger to a certain spot, which also involves both balance and movement, that would be the correct answer. </span>
<span>the young of a viviparous animal, especially of a mammal, in the early stages of development within the womb, in humans up to the end of the second month.
