Maya [1]

1. Create Polygon:

1) Mesh-> Create Polygon Tool

2)Menu->Create->Polygon primitives

2. Select a bunch of faces of a sphere:

1) When Edit Mesh-> Keep face together is selected, then Extrude these selected faces, they will be a whole;

2) When Keep face together is not selected, each face will extrude and they will be separated from each other.