A buffer solution is one which resists changes in pH when small quantities of an acid or an alkali are added to it. Acidic buffer solutions. An acidic buffer solution is simply one which has a pH less than 7. Acidic buffer solutions are commonly made from a weak acid and one of its salts-often a sodium salt. A common example would be a mixture of ethanoic acid and sodium ethanoate in solution. In this case, if the solution contained equal molar concentrations of both the acid and the salt, it would have a pH of 4.76.
They are haploid cells, because  they have half the number of chromosomes as an organism. During  fertilization the diploid number is restored. Sperm are single  cells. 3 people found this useful.
Sperm are the reproductive cells in men. They are produced by the seminiferous tubules of the testicles. Sperm pass through tubes called the vasa deferentia to other glands, where they mix with seminal fluids that are produced by the seminal vesicles. Seminal fluid that contains sperm is called semen.perm is a kind of micro organism which have ability to production and semen is called  mani  in urdu ...Semen contains sperm but sperm doesn't contain semen..That is the big differece between them.