Question

what is dispersal of seed? Why is it important?​

Answer 1

Answer:Seed dispersal is the transport or movement of seeds away from the parent plant in order to help prevent the overcrowding (if this happens plants would not have enough food and light to survive in the area) and help to create new colonies. Thus giving the seed the best chance to germinate in a new location away from the parent plant and hopefully start new colonies. Due to the fact plants have limited mobility they rely on a variety of dispersal vectors to transport their seeds via abiotic (non-living) and biotic (living) vectors. There are five main methods of seed dispersal, animals, gravity, wind, ballistic and water (1). Fire is also another way for seeds to be dispersed but is not as common as the other methods.

Biotic ways would be animals or Homo sapiens (humans). Animals disperse seeds (zoochory) in many ways because of this plants take advantage of animals and their ability to move, to help them disperse their seeds away from the parent plant. One way for the dispersal to happen if the animal were to ingest the seed, then the seed would be passed in their faeces (endozoochory) (2) such as strawberries, raspberries and nuts. Another would be for the seeds to get tangled in the animal’s fur or feathers and hitch a ride to another location, where it will eventually fall or be rubbed off by the animal, such as goose grass or sticky weed (3). Some animals would also bury seeds with the intention to return later to retrieve them. Such as a squirrel with acorns but it may not always be the case that they return (4). Humans would help with seed dispersal by the planting of the seeds or seeds becoming attached to clothes and shoes. Humans used to be classed as animals in seed dispersal however they can now sometimes be s...

Explanation:

Answer 2

Explanation:

Seed dispersal is the movement, spread or transport of seeds away from the parent plant. Plants have very limited mobility and consequently rely upon a variety of dispersal vectors to transport their propagules, including both abiotic vectors such as the wind and living (biotic) vectors like birds.

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.