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Functions of Synergids
Ultra structurally the structure and concentration of cell organelles reveals that synergids are metabolically active. The following Wee functions are attributed to synergids.
1. Directing of pollen tube growth by secreting some chemotropically active substances.
2. The degenerating synergids form the site for pollen tube discharge in the embryo sac.
3. The filiform apparatus may aid in the absorption and transportation of materials into the embryo sac from the nucellus.
Loading and Unloading of Sieve Tubes In order to understand the loading of food from manufacturing leaf cells to sieve tubes we must examine the anatomy of a minor vein shown
Define Factors that Lead to Vitamin K Deficiency? The factors that lead to vitamin K deficiency include: 1) Marginal dietary intake if one undergoes trauma and extensive sur
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The left atrium is a thin walled cavity. Most of the wall is smooth. Musculi pectinati are present only in the auricle of the atrium. The interatrial septum separates the cavity of
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What similarities do birds and reptiles share regarding external coverage, reproduction and excretion? Regarding external coverage, birds are same to reptiles as they present
write down the division of cryptogamae and phanerogamae
in what form brain stores thinking or past experiences?
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