Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution. 

The correct answer is Analogy, convergent

Concept:

• Evolution refers to the process through which organisms change over time as a result of changes in heritable physical or behavioral traits.
• Two key evolutionary concepts involved in comparing structures in organisms are homology and analogy.
• Homologous structures are defined as the organs of different animals having similar structures but differ in their functions. Homology indicates common ancestry. Homology is based on divergent evolution Examples
  • Forelimbs of man, cheetah, whale, and bat
  • Thorns and Tendrils of Bougainvillea and Cucurbita
  • Vertebrate heart or brain
• Analogous structures are defined as the organs of different animals having different structures but performing the same functions. Analogy is based on convergent evolution. Examples:
  • Wings of insects and birds. 
  • Sweet potatoes (root modification) and potatoes (stem modification)
  • Eye of octopus and of mammals
  • Flippers of Penguins and Dolphins

Explanation:

• Sweet potato and potato are examples of analogous structures. Despite having a similar function (storage of food), they arose from different origins. The sweet potato is a modified root, whereas the potato is a modified stem.