Question: Which Of The Following Is An Example Of Seed Dispersal?

What is a cocklebur seed?

Cocklebur is a bit strange in the seed department as well.

Instead of producing multiple seeds complete with hairy parachutes, the cocklebur produces two relatively large seeds within each bur.

You see, cocklebur is an annual.

It only has one season to germinate, grow, flower, and produce the next generation..

What is dispersal of fruit and seed?

Fruits and seeds dispersal is the process whereby fruits and seeds are scattered from their origin. The various ways by which fruit and seed are dispersed are known as agents of seed and fruit dispersal.

What is another word for dispersal?

Some common synonyms of disperse are dispel, dissipate, and scatter.

What is meant by dispersal?

: the act or result of dispersing especially : the process or result of the spreading of organisms from one place to another.

What are the examples of dispersal?

Dispersal is when individuals or seeds move from one site to a breeding or growing site. Individuals may disperse actively or passively. Active dispersal is when organisms move from one location to another without assistance. Examples of animals that actively disperse are bats, birds, and butterflies.

What types of seed are dispersed by water?

Many marine, beach, pond, and swamp plants have waterborne seeds, which are buoyant by being enclosed in corky fruits or air-containing fruits or both; examples of these plants include water plantain, yellow flag, sea kale, sea rocket, sea beet, and all species of Rhizophoraceae, a family of mangrove plants.

Why would these cocklebur seeds choose this method to travel?

Cocklebur propagates only via seed that retains ability to germinate for many years. Cocklebur is also known as “hitchhiker” because of its ability to travel large distances attached to the body of animals or socks, shoes and cloth of humans.

What protects a seed while it is being dispersed?

Fruit is the part of the plant that protects seeds as they grow. Fruits can be fleshy and juicy—like apples and oranges—or dry like nuts or peas. … Plants rely on animals and wind and water to help scatter their seeds.

What are the three types of dispersal?

Individuals of a population can be distributed in one of three basic patterns: they can be more or less equally spaced apart (uniform dispersion), dispersed randomly with no predictable pattern (random dispersion), or clustered in groups (clumped dispersion).

What is an example of seed dispersal?

The classic examples of these dispersal mechanisms, in the temperate northern hemisphere, include dandelions, which have a feathery pappus attached to their seeds and can be dispersed long distances, and maples, which have winged seeds (samaras) and flutter to the ground.

What type of seed are dispersed by animal?

Examples include mangoes, guavas, breadfruit, carob, and several fig species. In South Africa, a desert melon (Cucumis humifructus) participates in a symbiotic relationship with aardvarks—the animals eat the fruit for its water content and bury their own dung, which contains the seeds, near their burrows.

How is a cocklebur seed dispersal?

A primary dispersal mechanism for spiny cocklebur is “hitchhiking” on animal fur or human clothing. The fruits float in water, and can also be effectively dispersed by water. Seeds can be spread by clinging to feedsacks or in contaminated hay.

What are the disadvantages of seed dispersal?

The further the seed goes, the more likely more of them will grow and make it to maturity. Also, the wider and area a plant lives in, the more likely it will recover if one particular area suffers a drought, or whatnot. If all of them are concentrated in one area, survival will be limited if something goes wrong there.

What are the importance of fruit and seed dispersal?

In addition to protecting the embryo, the fruit plays an important role in seed dispersal. Seeds contained within fruits need to be dispersed far from the mother plant so that they may find favorable and less-competitive conditions in which to germinate and grow.

What is the advantage of a seed?

Seeds are a protective structure that lets a plant embryo survive for long periods of time before it germinates. The seed can remain dormant until conditions are suitable for the embryo to begin growing. Seeds have food sources pre-packaged for plant embryos to provide for an embryo’s needs in early growth.

Is Lotus seeds dispersed by water?

Answer: Lotus seeds are dispersed by water. … Lotus is an aquatic plant, hence, its seeds fall on the water surface, floats, and gets carried away through the water current. The lotus seeds are viable and specially adapted to survive longer germination periods.

What is seed dispersal by explosion?

Some plants distribute their seeds by violently ejecting them so that they fall well away from the parent plant. This is explosive dispersal. … As the two halves curl back, suddenly released like a tense spring, they flick out the seeds inside in an explosive manner.

What is the main advantage of seed dispersal?

Dispersal of seeds is very important for the survival of plant species. If plants grow too closely together, they have to compete for light, water and nutrients from the soil. Seed dispersal allows plants to spread out from a wide area and avoid competing with one another for the same resources.

What type of plant is cocklebur?

Cocklebur, also called Clotbur, weedy annual plant of the genus Xanthium of the family Asteraceae, distributed throughout much of Europe and parts of North America.

How does seed dispersal work?

Seed dispersal Plants disperse their seeds in lots of different ways. Some seeds are transported by the wind and are shaped to float, glide or spin through the air. … Some seed pods are designed to explode and throw the seeds a good distance from the parent plant. Many plants also use animals to carry their seeds.

How far can a seed travel in water?

Our analysis on existing seed data reveals that water‐dispersed riparian plants have relatively large seeds and are thereby evolutionarily adapted to long‐distance dispersal. Furthermore, our results indicate that median dispersal distances are 0.02–1.8 km (99‐percentile <8.5 km) in lowland streams in summer.