Question

Describe the various ways by which seeds are dispersed? Don't spam. Good night and wish you a sweet dream. ​

Answer 1

Answer:

Because plants cannot walk around and take their seeds to other places, they have developed other methods to disperse (move) their seeds. The most common methods are wind, water, animals, explosion and fire. Dandelion seeds float away in the wind.

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Answer 2

Answer:

[tex][/tex] Describe the various ways by which seeds were dispersed.

There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus. Dispersal involves the letting go or detachment of a diaspore from the main parent plant.

Wind -

This is wind dispersal. Seeds from plants like dandelions, swan plants and cottonwood trees are light and have feathery bristles and can be carried long distances by the wind. Some plants, like kauri and maple trees, have ‘winged’ seeds. They don’t float away but flutter to the ground. With wind dispersal, the seeds are simply blown about and land in all kinds of places.

Water -

Many plants have seeds that use water as a means of dispersal. The seeds float away from the parent plant. Mangrove trees live in estuaries. If a mangrove seed falls during low tide, it can begin to root in the soil. If the seeds fall in the water, they are carried away by the tide to grow somewhere else. Kōwhai trees also use water dispersal. They have a hard seed coat that allows them to float down streams and rivers.

Gravity -

Large, round, heavy fruits just drop straight off the tree onto the ground when they are ripe. If they have a tough outer shell, they may roll some distance from the parent plant. ... When they reach the ground, some seeds are taken further from the parent plant by animals or water.

Animals -

Some seeds are swallowed by birds and animals along with fruits. These seeds get dispersed with bird or animal droppings. Dispersal by Bursting: Some fruits burst open when they mature. The force of bursting is enough to spread the seeds.

Ballistic -

Ballochory is a type of dispersal where the seed is forcefully ejected by explosive dehiscence of the fruit. Often the force that generates the explosion results from turgor pressure within the fruit or due to internal tensions within the fruit.