
Scattering of seeds over a wide area is called
A. Pollination
B. Fertilisation
C. Dispersal
D. Germination
Answer
512.1k+ views
Hint: A seed is an embryonic plant that is protected by an outer covering. After pollen fertilisation and some development inside the mother plant, the ripened ovule produces seeds. The embryo is formed from the zygote, and the seed coat is formed from the ovule's integuments.
Complete answer:
Dispersal refers to the scattering of seeds over a large area by animals or other means.
Individual movement from their birth site to their breeding site, as well as movement from one breeding site to another, is referred to as biological dispersal. The movement of propagules such as seeds and spores is often referred to as dispersal.
Gravity, wind, ballistic, water, and animal dispersal are the five primary modes of seed dispersal. Some plants are serotinous, meaning they only spread their seeds in response to a trigger in the environment.
So the correct answer is option C.
Note:
Pollination is the transfer of pollen grains from the anther to the stigma of the same or another flower of the same or different plant.
Fertilization is the process of combining male and female gametes.
Germination is the process of growing a new plant from a seed under ideal conditions.
Complete answer:
Dispersal refers to the scattering of seeds over a large area by animals or other means.
Individual movement from their birth site to their breeding site, as well as movement from one breeding site to another, is referred to as biological dispersal. The movement of propagules such as seeds and spores is often referred to as dispersal.
Gravity, wind, ballistic, water, and animal dispersal are the five primary modes of seed dispersal. Some plants are serotinous, meaning they only spread their seeds in response to a trigger in the environment.
So the correct answer is option C.
Note:
Pollination is the transfer of pollen grains from the anther to the stigma of the same or another flower of the same or different plant.
Fertilization is the process of combining male and female gametes.
Germination is the process of growing a new plant from a seed under ideal conditions.
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