TLS Online TPP Program

#Question id: 18222


Which event during the evolution of land plants probably made the synthesis of secondary compounds most beneficial? 

#Unit 9. Diversity of Life Forms
  1. the greenhouse effect present throughout the Devonian period 
  2. the reverse-greenhouse effect during the Carboniferous period 
  3. the association of the roots of land plants with fungi 
  4. the rise of herbivory