Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: Some of the parenchyma cells which help form this tissue are grouped together to form rays that radiate horizontally. Vessel elements do not occur in most conifers and are more highly specialized for transport, while the elongate tracheids have thick, hard, secondary cell walls which become interrupted with pits after their lengthwise growth has ceased. FTP, identify this complex of conducting and supporting tissue that conducts water and dissolved mineral nutrients in vascular plants.
A:
Science