Question

(a) Why is simply copying the DNA in a dividing
cell not enough to maintain continuity of life?
(6) Differentiate between fission and budding
methods of asexual reproduction.
(c) Name any two contraceptive methods used by
human females.​

Answer 1

Answer:

given below

Explanation:

a)because living organisms follow various life proccesses like nutrition,respirstion,transportation, excretion to maintain their life on earth

b)Fission-it is an asexual methid of reproduction in which the organism simply divides itself itno two or more daughter cells.First takes the process of karyokineses or nuclear division and then takes the process of cytokineses or cytoplasm division eg-amoeba

Budding-it is an asexual method of reproduction in which a bud develops as an outgrowth due to repeated cell division at one particualr site. these buds when fully mature detach from the parent's body and become new independent individuals.eg-hydra

c)two contraceptive methods used by human females are-

*using of barrier methods (cervical caps)

*surgical methods(tubectonomy)

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