Fact 1: Secondary growth forms secondary vascular tissues and bark.

Fact 2: Secondary growth produces wood and bark in seed plants .

Given the two facts above, answer the question "What produces secondary vascular tissues in seed plants?" with the following options: 
- after growth
 - photosynthesis
 - faulty growth
 - Conifers
 - Chlorophyll
 - primary growth
 - plant reproduction
 - secondary growth


 

        secondary growth 