Reproduction in plants of Class 7
Reproduction is one of the primary attributes of a living organism, through which it is able toproduce more of its own kind. Through this process, new individuals are produced, who grow and reproduce again, thus increasing the population of a species.Like begets like is reproduction. Flowers are the reproductive parts of the plant,Calyx and corolla are the accessory parts of the flower,Androecium (stamen) and gynoecium (pistil) are the reproductive parts of the flower,Pollen-grains contain the male gametes and ovules the female gametes.,The parts of the flower are:- Stalk, Thalamus, Calyx, Corolla, Androecium and Gynoecium.
Reproduction is the ability of living organisms to produce new living organisms similar to them. It is one of the important characteristic of life.
Purpose of Reproduction: Reproduction is aimed at multiplication and perpetuation (stability) of the species. In other words it provides group immortality by replacing the dead individuals with new ones.
Basic Features of Reproduction:
The modes of reproduction vary in different organisms. However all of these have certain common basic features. These are –
- replication of DNA
- cell division
- formation of reproductive bodies or units
- development of reproductive bodies into offsprings
TYPES OF REPRODUCTION:
Animals reproduce in a variety of ways, which are categorized in two categories
- Asexual reproduction.
- sexual reproduction
NCERT solutions for class 7 Scienceprepared by Physics Wallah will help you to solve your NCERT text book exercise.