Detailed Instructions: Given a scientific passage and an answer, generate a question for the given answer.
Q: Passage: Vascular tissue runs through the ground tissue inside a plant. It transports fluids throughout the plant. Vascular tissue actually consists of two types of tissues, called xylem and phloem. The two types of vascular tissue are packaged together in bundles. You can see them in the celery in Figure below . Answer: xylem and phloem
A:
What are the two types of vascular tissues?