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Wigs and hairs - Seed Appendages
Seeds of certain plants have epidermal outgrowths or the integuments themselves may form folds and projections that present a wing-like appearance. In the tree Oroxylon sp. a thin, transparently white, circular or oval, disc-like wing spreads all around the two-lobed seed. The seed of cucurbit Zanonia macrocarpa has wings measuring up to 10 cm.
In the drumstick plant Moringa oleifera the seed has three equidistant wings. Seed wings provide large surface area, with optimum strength, combined with a minimum of material. A surprisingly large number of winged seeds can be arranged compactly in a fruit. Wings help the seed to propel, sail or spin some distance away when released from the fruit.
simplest way to learn their classifiction
A genomic DNA library is made from the genomic DNA of an organism. For instance, a mouse genomic library could be made by digesting mouse nuclear DNA with a restriction nuclease to
Where do PGA and glycine gain entry respectively after being formed during photorespiration in plants? What occurs to them immediately after?
The signals for parturition originate from: 1. placenta only 2. placenta as well as fully developed foetus 3. oxytocin released from maternal pituitary 4. fully develop
Malpighian Tubules Other arthropods like insects and myriapods and arachnids have Malpighian tubules, the outgrowths of alimentary canal like excretory organs. Malpighian tub
Preparation on the Previous Day of Operation Remove all the jewellery, nail polish, cut nails. The patient's body is cleaned - shaving from chin to toe, inclu
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a) Mention the main cause of air pollution in metro cities. Write any three ways by which it can be decreased. b) How did Eli Lilly synthesize the human insulin? Mention
Q. What do you mean by Primary Metabolites ? As the name indicates, primary metabolites are molecules involved in vital metabolic pathways. They are of universal occurrence and
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