one shot#!#all exceptions

For process of photosynthesis, all except one of the following items are essential. Point out the exception

All but one of the following chemicals are neurotransmitters that function in the human brain.Select the exception.

Fruit files are one of the best materials for genetic studies because of all except

All the following molecules are polar except one

All of the following shows faster conduction of nerve impulse except one ?

Fruit flies are one of the best materials for genetic studies because of all , except

There are 3 columns of balloons.In how many ways was all the balloons can be shots.Balloons are hanging from the ceiling,so the lower balloon has to be shot first.One has to shoot all 12 balloons.