write the different ways of dispersal of seed with suitable example
Answers
Answer:
Following are the various methods of seed dispersal:
Dispersal by Wind:
Seeds of some plants are light-weight and some hair-like or wing-like structures are present on them. Such seeds float on air and are thus dispersed by wind. Example: Dandelion, maple, drumstick, etc.
Dispersal by Water:
Dispersal by water takes place in some aquatic plants and in some which grow near a water body. Seeds of water lily float and thus dispersed by water. The coconut seed has a tough fibrous covering which has plenty of air inside. This helps the coconut seeds in floating on water.
Dispersal by Animals:
Some seeds have spine-like structures on them. They get stuck to the fur of animals and thus get spread to different places. Examples; Beggar tick, Xanthium, etc. Some seeds are swallowed by birds and animals along with fruits. These seeds get dispersed with bird or animal droppings.
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Dispersal by Bursting:
Some fruits burst open when they mature. The force of bursting is enough to spread the seeds. Examples; Ladyfinger, castor, balsam, etc.
Dispersal by Humans:
Human beings also help in dispersal of seeds, especially during farming.
Answer:
- Dispersal by Wind: Seeds of some plants are light-weight and some hair-like or wing-like structures are present on them.
- Dispersal by Water:
- Dispersal by Animals:
- Dispersal by Bursting: Some fruits burst open
- when they mature.
- Dispersal by Humans