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Sclerenchyma
The hard covering of seeds is primarily composed of the seed coat, which is made up of specialized tissues like the testa and the tegmen. These tissues provide protection to the seed during dormancy and help regulate water intake when germination occurs. Additionally, the endosperm or cotyledons found within the seed also contribute to the overall structure of the seed coat.
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Why do seeds have outer overing
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The fleshy covering of yew seeds is called an aril. Arils are red in color and attract birds, which help in dispersing the seeds.
Yes!
Well, the seeds do have a hard shell, and there is an indentation around the seeds, sort of like a pocket.
The fleshy outer covering on pomegranate seeds is called arils, which contain the juicy pulp and seeds inside. The outer coating on yew seeds is a red, berry-like structure called an aril, which is often the only part of the seed that is eaten by birds.
Sclerenchyma CellsSclerenchyma cells function as plant support. Hardened with lignin, a tough subtance that strengthens the cell wall, these cells are thicker and less flexible than the collenchyma cells. The cells usually do not live after they are fully grown, but the non-living cell structure will remain as a source of strength. These cells are found in stems, leaf veins and in the hard outer covering of seeds and nuts.
testa