Quick Answer: How Seeds Are Scattered?

How do seeds spread to far off places write in your own words?

Write in your own words.

Answer.

(i) Seeds need moisture (water) and air for sprouting.

(ii) Seeds spread to far places as they are carried away by birds, animals, air and water from one place to another place..

What do you mean by germination?

The beginning of growth, as of a seed, spore, or bud. The germination of most seeds and spores occurs in response to warmth and water.

Which fruit is dispersed by animals?

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.

Do animals plant seeds?

Explanation: One of the means seeds can be dispersed by animals is when animals eat the seeds. This usually happens with fruit bearing plants, where the sweet fruit entices the animal into eating the seeds. It does what it does and later excretes the seeds in another location, which can then grow.

How seeds are scattered by animals?

Animal dispersal Animals disperse seeds in several ways. First, some plants, like the burr at left, have barbs or other structures that get tangled in animal fur or feathers, and are then carried to new sites. Other plants produce their seeds inside fleshy fruits that then get eaten be an animal.

Why is it important for seeds to travel?

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 are 3 ways animals disperse seeds?

Animals can disperse seeds by excreting or burying them; other fruits have structures, such as hooks, that attach themselves to animals’ fur. Humans also play a role as dispersers by moving fruit to new places and discarding the inedible portions containing the seeds.

How do seeds spread to far off places?

Seeds are spread by birds, animals, air and water. Birds and animals throw out seeds after eating the fruit. Thus the seeds spread out. Similarly, some light seeds are spread out by wind.

How do humans disperse seeds?

Humans may disperse seeds by many various means and some surprisingly high distances have been repeatedly measured. Examples are: dispersal on human clothes (up to 250 m), on shoes (up to 5 km), or by cars (regularly ~ 250 m, singles cases > 100 km). … Deliberate seed dispersal also occurs as seed bombing.

What are the advantages of seed dispersal?

Seed dispersal can be advantageous (1) in escape from density- or distance-dependent seed and seedling mortality, (2) by colonization of suitable sites unpredictable in space and time, and (3) by directed dispersal to particular sites with a relatively high probability of survival.

Which seeds germinate quickly?

The fastest germinating seeds include everything in the cabbage family – bok choi, broccoli, kale, cauliflower etc, and lettuce. The slowest seeds to germinate are pepper, eggplant, fennel, celery, which may take 5+ days. The rest such as tomato, beets, chard, squash, onions, will take about 3 days.

How are seeds scattered by the wind?

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. … With wind dispersal, the seeds are simply blown about and land in all kinds of places.

How do seeds spread in nature?

Seed dispersal Some seeds are transported by the wind and are shaped to float, glide or spin through the air. Plants growing near a river may use the flowing water to transport their seeds. Some seed pods are designed to explode and throw the seeds a good distance from the parent plant.