How many cells are in fruits?

Why don't don't all fruits universally resemble each other internally like mammals and similar organisms do?

• I learned in anatomy about the body and how it's symmetrical and the same goes for animals. And also cells. Why aren't fruits the same? I was examining a banana and it's nothing like some other fruits. Is the banana the seed? or the fruit it's self?

• Answer:

  Bananas have been heavily selected to have the strange shape they currently do. Here's what a wild banana looks like: http://en.wikipedia.org/wiki/File:Inside_a_wild-type_banana.jpg When you see it like that, it doesn't seem so different from any other fruit. Cultivated banana have been cultivated to be seedless or to have seeds so small that they're practically seedless. All organism vary in shape, size, and to a lesser degree, composition. All fruits have the same basic parts and serve the same functions, despite massive amounts of artificial selection on the banana, it still has all the same parts as an apple, they just vary in shape, size, color and composition.