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Answer Posted / tanu pal
There are number of mechanism by which seeds and fruits are dispersed. Some of which are as follows
(1)Fruits and seed dispersed by wind :- There are number of adaptations e.g. wings, pappus, hairs etc.. Which help the seeds and fruits to be dispersed by wind to longer or shorter distances.
(2) Seeds and fruits dispersed by water :- In certain fruits and seeds have floating devices which help them to be carried away by water here and there. The fibrous fruit of coconut is capable of floating long distances in sea without suffering any injury. Lotus also floats on the surface of water and moved here and there by wind or water current.
(3)Explosive fruits dispersed fruits:- Some of the seeds are scattered on all the sides when some of fruits burst with a sudden jerk examples are jasmine. Coster etc..
(4)Fruits and seeds dispersed by Animals:- Some fruits and seeds stick to the body of wooly animals or even to clothing of mankind because these fruits are provided with hooks, harbs stiff hairs and sticky glands on their surface e.g. fruit of anthium or urena are covered with number of hooks
(5)Some birds, squirrels and human being are also useful agents in dispersing the seeds and fruits to wider areas.
41,Q Explain the Cell?
The fundamental structural and function units of all plants protoplasmic mass in it in which is present a denser, spherical or oval body called the nucleus and this cell is bounded by a distinct wall called cell wall. Cell wall is nonliving while portoplasm nucleus is living
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