Describe the various ways by which seeds are dispersed vey short answer
Answers
The dispersal of seeds takes place through different mechanisms.
Wind: Many seeds get dispersed by wind and therefore they may develop hair¬like structures that offer air-resistance so that they are carried over long distances before falling to the ground. Common examples of such seeds are that of drumstick, cotton seeds and seeds of maple.
Water: The seeds may also get carried away by water. Seeds of water plants such as the water lily, lotus, coconut, etc. may even develop a spongy outer coat that keeps the seeds afloat.
Animals: Animals also help in seed dispersal by eating the succulent fruits or the seeds of plants like Xanthium, stick to the body of animals passing by through tiny hooks in their coat and travel to far off places.
Explosion: Another means of seed dispersal takes place through explosive mechanisms employed by the plant itself. Sometimes as observed in case of pea, jasmine, etc.
Answer:
Dispersal by wind – Seeds which are very light ,dry and have wings or hair are dispersed by Wind. Ex- dodonea and calotropis
Dispersal by water-The seeds float with the water and grown hair on sea shores. Eg-coconut.
Dispersal by animals -Seeds have hooks or are sticky get attached to fur of animals and get Dispersed. Ex -xanthium.