[2 marks], iii) Suggest another way in which wind assist in the reproduction of plants. Festival of Sacrifice: The Past and Present of the Islamic Holiday of Eid al-Adha. Seeds and fruits are dispersed away from the parents plant. Wind - light and have extensions which act as parachutes or wings to catch the wind. This is to reduce. or spread away from each other and from the parent plant. Seeds have lightweight parts, wings or parachutes, Brightly coloured and tasty fruits contain seeds with indigestible coats, so that the seeds pass through the animal’s digestive system undamaged, Fruits have hooks that attach them to the fur of passing animals, Have a pod that bursts open when ripe, throwing the seeds away from the plant. Mammals and birds sometimes also function in the dispersal of seeds by eating and transporting the fruit. IGCSE Physics Handwritten Notes (Combines Sciences), IGCSE Chemistry Handwritten Notes (Combined Sciences), Biology Notes for IGCSE 2014 (all in one), #32 Food test 3 - Emulsion (ethanol) test for Fats, #31 Food test 2 - Benedict's test for Reducing Sugars, # 90 Accommodation - focusing on objects far and near, # 129 Monohybrid cross and the punnett square. The most obvious role of a sycamore ball is to disperse the tree’s seeds. Dispersal can take place through a number of ways including by the aid of animals, water, birds, wind and explosion. Flowers are important for sexual reproduction by plants. Once seeds are deposited in a new place, they are likely to start germinating and eventually growing if the conditions are right. Sycamore seeds are usually light in weight and have wing like features that enable them to easily get transported over long distances by wind. These must meet for reproduction to begin, a process called pollination. [1 mark]. the seed’s food reserves. Seed of sycamore are arranged in V-shaped pairs and equipped with wings that facilitate dispersal by wind. Investigating dispersal Seeds dispersed by the wind are easier to investigate than seeds dispersed by other methods. One tree produces up to 10.000 seed per season. 2. In order for plants to start new colonies, they spread their seeds through a process called seed dispersal. The table describes the most common methods of seed dispersal: Seeds dispersed by the wind are easier to investigate than seeds dispersed by other methods. on the part that catches the wind (parachute, wing…). Some fruit have built-in mechanisms so they can disperse by themselves, whereas others require the help of agents like wind, water, and animals (Figure 1).
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