DENDROLOGY AND SOCIETY
PLANT CLASSIFICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are single-celled organisms.
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They cannot reproduce.
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They don’t gain enough nutrients from photosynthesis and get little sunlight.
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They lack vascular tissue and must transport nutrients cell to cell.
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Detailed explanation-1: -Mosses have some water-conducting cells, but they do not have the empty, lignin-reinforced cells that allow vascular plants to transport water with strong pressure gradients. Thus, mosses have very limited water transport ability and can’t grow very tall.
Detailed explanation-2: -Due to the lack of vascular tissues, water and nutrients cannot be transported to long distances so they can not grow tall. They do not have true roots, leaves, and stems which are essential in providing structural support to tall plants. Example-mosses, liverworts.
Detailed explanation-3: -They lack a vascular system, so they cannot pull water out of the ground through roots or transfer it long distances in their bodies. This limits their size. They do not flower and therefore do not produce seeds; instead they rely upon water to carry their sperm (which can swim just like ours) to the eggs.
Detailed explanation-4: -Mosses and liverworts are small, primitive, non-vascular plants. They lack the conductive tissue most plants use to transport water and nutrients. Instead, moisture is absorbed directly into cells by osmosis.