Question

Which of the following seeds spread to the long-distance by bursting?
A. Mango
B. Cotton
C. Mustard
D. Soybean.

Answer 1

Hint: The process which involves the transport of seeds from the parental pant is called dispersal of seeds. Seed dispersal depends on various factors. These factors are called dispersal factors. Dispersal factors are two types of, named biotic factors and abiotic factors. Biotic factors involve birds and other animals and abiotic factors involve wind.

Complete answer:
> Dispersal of mango seed done by biotic factors. Mango is an edible fruit. The seed dispersal involves large animals like elephants. Elephants eat the fruit pulp and transport the seed from one place to another away from the parental plant.
> The abiotic factor-like wind is responsible for spreading the cotton seeds. Cotton seeds are the light weighted, long fine hair-like structure that can easily be transported from one place to another by the wind.
> Mustard Seed possesses 1-2milimeter of diameter. The color of the seeds can be yellow, black, or white. Dispersal of a mustard seed involves animal activities or human activities. The other factors which are involved in seed transportation are water, wind, gravity, etc.
> Both explosion mechanisms and animal activities (birds) are involved in the spreading of soybean seeds to the long distance. After drying, the soybean pods twist and bust its seeds. Thus the seeds have spread long-distance through the busting.

So, the correct answer is option D. Soybean.

Note:
Dispersal of seeds possess many benefits like it increases the survival rate of the seedlings predators and pathogens as they target the bottom region of parent plants for grazing. Seed dispersal also helps the plant to reach a certain environment which is more preferable for survival.