A person is reading a book. Outline the events that take place in the nervous system from the time an image of a word is formed on the retina to the time that word is recognized by the brain.
Zach wants to run an experiment on reaction rates. He designs an experiment testing the reaction rate changes when magnesium and hydrochloric acid react. He decides to run one trial with magnesium ribbon and 1.0 M HCl. For his second trial he rolls the magnesium ribbon into a tight coil and reacts it with 2.0 M HCl. In the third trial, Zach cuts the same amount of Magnesium into slivers and reacts them with 3.0 M HCl. What is the problem with Zach's experimental design?
A double stranded RNA genome of 500 kbp isolated from a virus in the stool of a child with gastroenteritis was found to contain 35% uracil. Determine the quantity of guanine,adenine and thymine present in this genome.