First, identify the labelled structures (1-4) in the micrograph show in the left frame (check your answers by clicking on the label), then complete the activities shown below.

• Vegatative organ from which this section came: root stem leaf
  
• Which of the labeled areas shows some secondary growth? 1 2 3 4
  
• The region indicated by label "3" consists of cells that are part of the: dermal vascular ground tissue system.