Here's why:

* Hypogeal germination means the cotyledons (seed leaves) remain underground.

* Epigeal germination means the cotyledons emerge above ground.

Pea seeds exhibit epigeal germination. This means the cotyledons, which are the initial food source for the seedling, rise above the ground. They will eventually turn green and photosynthesize for a short time before withering away.

Let me know if you have any other questions about plant germination!