underline a medium in each example A) when a pebble stone into a pond water waves form B) sound waves travel through the air from a speaker to your ear c) when you move your hand up and down while holding a jump rope you make a wave

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.