BIOLOGY: HOW LIFE WORKS(EBK+AHIEVE)
3rd Edition
ISBN: 9781319230203
Author: Morris
Publisher: MAC HIGHER
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Chapter 31.2, Problem 5SAQ
Summary Introduction
Each plant species alternates among two multicellular forms, which includes a haploid gametophyte generation (makes gametes) and a diploid sporophyte generation (makes spores). One of the major events in the sporophyte generation is the evolution of xylem and phloem. Xylem transports dissolved nutrients and water, whereas phloem transports carbohydrates generated by photosynthesis.
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