9-16 Biology - 6 9-16 Biology 7 Plants are mostly diploid...

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6 9-16 Biology 7 Plants are mostly diploid Bryo- means moss Diversity of plants - Bryophytes o Groups with a dominant sporophyte generation o Non-vascular o Most require water for active growth o 3 phyla Bryophyta (true mosses) Usually live in a dense colonies as beds Each individual has tiny hair-like absorptive structures called rhizoids and stemlike structures that bear leave- like structures called blades (The above structures are not true roots, stems, or leaves) Seedless, but produce spores (seed has nutriens, spores don’t) The sporophyte consists of a foot, a seta, and a capsule Have stomata Hepatophyta (liverworts) Gametophytes form a broadened leaflike structure called the thallus Small sporophyte Asexual reproduction involves the production of tiny ball-shaped embryos called gemmae (produced in gammae cup) The most primitive of all plants, no stomata Anthocerophyta (hornworts) Gametophytes are flattened structures about a few cells
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9-16 Biology - 6 9-16 Biology 7 Plants are mostly diploid...

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