User talk:SMILEE DANISH

HOW DO ORGANISMS REPRODUCE
REPRODUCTION:- a biological process in which an organism gives rise to young ones (offsprings) similar to itself. Organisms reproduce because reproduction is necessary for -- • maintaining the existence of species ( race) on the earth. • increasing the population of the species. • evolution (by transmitting favourable variations from one generation to another generation). LIFESPAN :- the total time period from birth to the natural death of a particular organism is known as its lifespan. No individual ( organism ) is immortal (death is absolutely must for each living thing) except single cell organisms like Amoeba. TYPES OF REPRODUCTION:- there are two types of reproductions, (i)  Asexual reproduction (ii)  sexual reproduction. ASEXUAL REPRODUCTION :- the method of reproduction in which an offspring is produced by a single parent with or without the involvement of gametes (sex cells) is called asexual reproduction. SEXUAL REPRODUCTION :- the method of reproduction in which male gamete (sex cell or reproductive cell)  fuses with female gamete to give rise to zygote (first cell of offspring)  which develop into new individual by repeating cell division is called sexual reproduction.
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ASEXUAL TYPES :- (i). fission (ii). budding (iii). fragmentation (iv). regeneration (v). spore formation (vi). vegetative propagation in plants SMILEE DANISH (talk) 18:20, 15 August 2020 (UTC)

chemistry
why is the charge of spin quantum number +1/2 or -1/2. SMILEE DANISH (talk) 18:21, 15 August 2020 (UTC)