For a regular neuron, the Nernst potential of K+ is about -90 mV. If a researcher applies a drug that binds to and blocks 50% of K+ leak channels, what will the new Nernst potential of K+ be? 1. 0 mV
2. -45 mV
3. -90 mV
4. -135 mV
5. -180 mV

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.