Question

Seed dispersal takes place by means of ________, _________ and ___________.

Answer 1

Hint: Seed dispersal is the spread of seeds away from the parent plant to a wider range of areas. Serotinous plants are the ones that can disperse their seeds when responding to a stimulus. Seed dispersal is split into autochory and allochory.

Complete answer:
Dispersal of seeds allows plants to lay seeds to a much larger area to avoid competition between one another for the same resources. It is one of the most important phases in the process of plant regeneration. Seeds dispersal can take place by means of wind, water and animals. These means are called dispersal vectors divided in two parts: abiotic vectors like winds and biotic vectors like birds and insects.

Seed dispersal can take place from the parent plant individually or collectively. There are five main modes by which seed dispersal can take place, they are gravity, wind, ballistic, water and animals. Serotinous plants are the ones that can disperse their seeds when responding to a stimulus.

Seed dispersal has several benefits for different plant species like the survival of seed is often higher when it is away from the parent plant because of less competition for light, water and nutrients. It also allows plants to reach distant habitats that are favourable for survival. It also plays a major role in the maintenance and diversification of plant species.

Seed dispersal takes place by means of wind , water and animals.

Note: Seed dispersal has a geographical distribution that is compelled by a wide range of variables like the temperature outside which seeds have difficulty surviving. There are also physical barriers that are limiting to a plant species distribution like mountains, rivers and lakes. There are also some anthropogenic barriers, like roads, farming, and river dams which also function as obstacles to movement.