Science, asked by john9269, 11 months ago

short notes of chapter how do organism reproduce class 10

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Answered by meenakshi1803
14
it's a short summary for this chapter
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john9269: diagram of flower with labelling
Answered by surbhichaudhary7
22
hey mate here yur answer
frst thing that is important is definition of reproduction . Reproduction is the process of producing new organisms from the existing organisms of the same species. Then second thing important is types of reproduction frst one is asexual reproduction and second one is sexual reproduction. Then there r 8 types of asexual reproduction :-
1. fission 2. binary fission 3. multiple fission 4. fragmentation 5. budding 6. regeneration 7. vegetative propagation 8. spore formation.
then second type of reproduction IE. sexual reproduction:-
1. sexual reproduction in flowering plants
2. pollination 3. fertilisation in plants 4. sexual reproduction in humans. and then human reproductive system in this there r two types frst one is male reproductive system and second one is female reproductive system.
Male reproductive system :-
1. Testes 2. vas deferens 3. urethra 4. penis 5. accessory glands
Female reproductive system :-
1. ovaries 2. Fallopian Tube 3. uterus 4. vagina
Then we come to topic fertilisation in humans :- After copulation ,the sperms reach the Fallopian tube where the ovum is present and fertilisation takes place to form a zygote which starts dividing for a period of nine months.
Then next topic is Menstruation -if fertilisation doesn't take place then the Process of menstruation occurs in females. it is the breakdown and removal of the thick, spongy lining of the uterus In the form of vaginal bleeding.
Then next topic is reproductive health in humans and then birth control.
Birth control :-A number of methods or techniques have been developed to prevent and control pregnancy. these methods are :-
1. Barrier:- condom, diaphragm, IUCD.
2.Hormonal:- oral contraceptive pills
3. chemical :- spermicide
4. surgical :- tubectomy.

Sexually transmitted diseases (STDs) :-these are diseases which spread by sexual contact from an infected person to a healthy person. The most commons ones are gonorrhoea, syphilis.

hope it helps u
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