Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
(also called pith rays) sections of the medulla that occur between the vascular bundles.
(also called the pith) the central part of the stem that consists of large, thin-walled...
a muscle, gland or organ capable of responding to a nerve impulse in order to bring about a...
elongated cells in the xylem of vascular plants that transport water and mineral salts.