What is Average speed ?
Average speed :- the speed is the total distance covered divided by the total time taken.,Thus , Average speed =Total distance covered Speed / Total time taken
WHAT IS INTER- MOLECULAR FORCE ?
The molecules of a matter exert a force of attraction on each other . The force of attraction is called inter molecular force.
What is Matter ?
Matter is something which has mass, occupies space, and can be perceived by our senses .Hydrogen , milk ,pen etc.
Benefit of dispersal of seeds
Seed dispersal helps the plants to (i) prevent overcrowding, (ii) avoid competition for sunlight, water and minerals and (iii) invade new habitats
What is cross-pollination ?
In cross-pollination, pollen grains are transferred from the anther of one flower to the stigma of another flower of the same kind.
What is self pollination?
self-pollination:- pollen grains are transferred from the anther to the stigma of the same flower.
Types of pollination
Pollination is of two types, self-pollination and cross-pollination. In self-pollination, pollen grains are transferred from the anther to the stigma of the same flower. In cross-pollination, pollen grains are transferred from the anther of one flower to the stigma of another flower the same kind.
What is SEED DISPERSAL ?
In nature same kind of plants grow at different places. This happens because seeds are dispersed to different places.Sometimes after a walk through a forest or a field or a park, you may have found seeds or fruits sticking to your clothes. There would be severe competition for sunlight, water, mineral sand space. As a …
What is seed ?
The mature ovule is called seed .
What is fruits ?
The ripened ovary is called fruits.