Table of Contents
- 1 What are two advantages of dispersal?
- 2 What is the dispersal by water?
- 3 Why is water dispersed?
- 4 How is water helpful in seed dispersal give example?
- 5 What are the 5 advantages of propagation by seed?
- 6 What are the advantages and disadvantages of propagation?
- 7 How are plants able to dispersal by water?
- 8 Which is an advantage of the dispersal of seeds?
What are two advantages of 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.
What is the dispersal 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.
What are advantages of animal dispersal?
The dispersal of seeds by animals offers a few broad advantages: Protection from predators: Predators typically target regions of dense with prey and thus dispersal (away from the parent plant) reduces the density near the parent plant, thereby providing protection from predators.
Why is water dispersed?
Water dispersal 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.
How is water helpful in seed dispersal give example?
Answer: Seeds dispersed by water are contained in light and buoyant fruit, giving them the ability to float. Coconuts are well known for their ability to float on water to reach land where they can germinate. Similarly, willow and silver birches produce lightweight fruit that can float on water.
What is the advantage of seed dispersal by splitting?
It prevents overcrowding of plants • It reduces competition among fruits and seeds for sunlight, water and other soil minerals. These seeds then get dispersed throughout the jungle along with them.
What are the 5 advantages of propagation by seed?
Advantages Of Propagating From Seed:
- Seeds are the source used most widely.
- New cultivars and varieties can be created through sexual propagation.
- It tends to be cheaper to propagate from seed.
- The majority of seeds are readily available.
- Sexual propagation seldom requires expensive propagation structures.
What are the advantages and disadvantages of propagation?
| ADVANTAGES | DISADVANTAGES |
|---|---|
| Faster and more certain method of propagation. | Does not produce new varieties. |
| New individuals produced have exactly identical qualities as their parents. This preserves the characteristics of food and flower crops. | Leads to overcrowding around the parent plant. |
What are the advantages of seed dispersal Class 12?
(i) Seeds escape from mortality near the parent plants due to predation by animals or getting diseases and also avoiding competition. (ii) Dispersal also gives a chance to occupy favourable sites for growth. (iii) It is an important process in the movement of plant genes.
How are plants able to dispersal by water?
Dispersal by Water. Plants which grow beside water often rely on water to transport their seeds for them. They may produce light seeds which float, or there may be fluff that helps buoyancy. Two tall trees, Willow and Silver Birch, are often found in the middle of moorland, far from any other trees, but along the course of a stream.
Which is an advantage of the dispersal of seeds?
Ans: The advantages of seed dispersal are: 1 The chances of seed survival are high because of less competition among the same species. 2 The seeds can germinate when they get favourable conditions. 3 The seed dispersal main advantage is to protect themselves from predators.
How are coconut seeds used for animal dispersal?
These seeds fall from the parent plant and can float for miles to the shores of other beaches. The coconut has a wood-like outer shell that acts as a waterproof cover. Animal dispersal is useful to plants in grasslands where animals graze and inhabit. One form of seeds that travel by animal dispersal is referred to as “hitchhiker” seeds.