Which organ contain lots of vessicle

The Golgi apparatus gathers simple molecules and combines them to make molecules that are more complex. It then takes those big molecules, packages them in vesicles, and either stores them for later use or sends them out of the cell. It is also the organelle that builds lysosomes (cell digestion machines).

The heart. Not entirely sure tho. Hope this helps

Well, I guess the advantage is that you don't have to find a measuring stick. However, the disadvantage is that not everybody has the same stride length and the same hand length. Of course a 6 foot person would have longer strides than a 4 foot person.