Question

How can we say that potato is a modified stem while sweet potato is a modified root?

Answer 1

Answer:

Potato is a stem and sweet potato is a root because the stem of the potato has undergone modifications in order to store food whereas in a sweet potato the root has undergone modifications in order to store the food.

Explanation: this is your answer

Answer 2

Potato is a stem and sweet potato is a root because the stem of the potato has undergone modifications in order to store food whereas in a sweet potato the root has undergone modifications in order to store the food.