Which phyla lacks a vascular system?

Question

Quizplus · Accepted Answer

Hepaticophyta, also known as liverworts, lack a vascular system. The other options all have some form of vascular tissue. Pterophyta (ferns) have true leaves and roots, as well as specialized vascular tissue called xylem and phloem. Gnetophyta is a small group of gymnosperms with a complex vascular system. Ginkgophyta (Ginkgo) has vessels adapted for transportation of water and nutrients. Arthophyta (horsetails) also has specialized vascular tissue, including hollow stems with silica.

Which Phyla Lacks a Vascular System