Of these visible lights, which has the lowest frequency? Red, Green, Blue

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.