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3. Give reason.a) Spores can survive for a long time.b) flowers are known as reproductive parts of a plant |
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Answer» Spores are formed inside a thick outer covering called the cyst wall that protects the spores from harsh and unfavorable conditions. This helps them in surviving for a longer time. a. Eachsporeis covered by a hard protective thick walltoenable themsurviveunder unfavourable conditions like lack of moisture, lack of nutrients and extreme temperature. Thus, thespores can survivefor alonger periodoftime b. The primary purpose of aflowerisreproduction. Since theflowersare thereproductive organs of plant, they mediate the joining of the sperm, contained within pollen, to the ovules — contained in the ovary. Pollination is the movement of pollen from the anthers to the stigma. .Stamens are the male reproductive parts of flowers. A stamen consists of an anther (which produces pollen) and a filament. The pollen consists of the male reproductive cells; they fertilize ovules. |
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