Fact 1: Roots have primary and secondary meristems for growth in length and width.

Fact 2: Secondary meristems develop after primary meristems.

Given the two facts above, answer the question "What do roots have?" with the following options: 
- allow growth
 - resistance
 - Sediment
 - meristems
 - layers of fat
 - Energy
 - storing water
 - alveoli


 

    meristems     