Hermaphrodites would not be able to optimize to the fulfilling both the male and female roles. Finally, you pointed out that the worms do not inbreed. Inbreeding avoidance does not have to be the cause of the hermaphroditism persisting, if the environment/other factors favour hermaphroditism.
Potatoes come from the ground, the edible tubers on the roots of the potato plant (Solanum tuberosum). They are grown in many parts of the world. The Spanish were the first Eu â¦ ropeans to see potatoes. The tubers were cultivated in South America, in Peru and Chile.
Sweet potato plants are fast growing vines that cover the ground. Originally they come from Central and South America, which means they are a warm weather vegetable. You need a long warm season to grow good sweet potatoes. There are sweet potato varieties with red, yellow and white tubers. The red ones have the highest vitamin A content, and have become the most popular variety. But all sweet potatoes are very nutritious in general, especially if you use the leaves and shoots, too.