describe reproduction of human.. follow me
Answers
Human produces sexually . Bcoz they don't have asexual reproduction.
Human has 2 types of sex organ .
- Reproductive sex organ - Testes & Ovary
- Accessory sex organ - Penis , Vagina , External Genitalia , Breast , etc....
- Penis vagina required for copulation and in sperm transfer from male to female uterus .
- Sperm produced by testes in the process of Spermatogenesis and Egg or Ovum produced by Ovary in the process of Oogenesis.
- During copulation sperm get into the Fallopian tube and only one of the too many sperm get attach to the Ovum wall then they get into gametogenesis or Fertilization process.
- Then after fertilization the zygote which have haploid number of chromosomes placed into the Uterus with the help of Umblical cord and Amniotic fluid serves the Zygote nutrition .
- After 280 days the zygote fully converted and grown into the Baby or Foetus .
- Then at the time parturition the foetus get out through the Vagina to outside .
- At that time the Female breast release its first milk called Colostrum which is enriched with the Vitamin IgE .
- This vitamin helps in Immune system of baby until the baby developed its own immune system .
- It have too many much to write but this is a gist form .
- Hope you like it .
Just tap on thanks & Follow me for more .
It's By Bad......
hi frnd
Human reproduction is any form of sexual reproduction resulting in human fertilization. It typically involves sexual intercourse between a man and a woman. During sexual intercourse, the interaction between the maleand female reproductive systems results in fertilization of the woman's ovum by the man's sperm. These are specialized reproductive cells called gametes, created in a process called meiosis. While normal cells contains 46 chromosomes, 23 pairs, gamete cells only contain 23 chromosomes, and it is when these two cells merge into one zygote cell that genetic recombination occurs and the new zygote contains 23 chromosomes from each parent, giving them 23 pairs. A typical 9-month gestation period is followed by childbirth. The fertilization of the ovum may be achieved by artificial inseminationmethods, which do not involve sexual intercourse. Assisted reproductive technologyalso exists.
Human reproduction normally begins with copulation, followed by nine months of pregnancy before childbirth, though it may be achieved through artificial insemination. Many years of parental care are required before a human child becomes independent, typically between twelve and eighteen or more. Pregnancy can be avoided with the use of contraceptives such as condoms and Intrauterine devices.
CopulationEdit
Main article: Sexual intercourse
Human reproduction naturally takes place as internal fertilization by sexual intercourse. During this process, the male inserts his penis, which needs to be erect, into the female's vagina, and then either partner initiates rhythmic pelvic thrusts until the male ejaculates semen, which contains sperm, into the vaginal canal. This process is also known as "coitus", "mating", "having sex", or, euphemistically, "making love". The sperm and the ovum are known as gametes (each containing half the genetic information of the parent, created through meiosis). The sperm (being one of approximately 250 million sperm in a typical male ejaculation) travels through the vagina and cervix into the uterus or Fallopian tubes. Only 1 in 14 million of the ejaculated sperm will reach the Fallopian tube. The egg simultaneously moves through the Fallopian tube away from the ovary. One of the sperm encounters, penetrates and fertilizes the ovum, creating a zygote. Upon fertilization and implantation, gestation of the fetus then occurs within the female's uterus.[2][3][4][5]

Chance of fertilization by menstrual cycle day relative to ovulation.[6]
Pregnancy rates for sexual intercourse are highest during the menstrual cycle time from some 5 days before until 1 to 2 days after ovulation.[7] For optimal pregnancy chance, there are recommendations of sexual intercourse every 1 or 2 days,[8] or every 2 or 3 days.[9] Studies have shown no significant difference between different sex positionsand pregnancy rate, as long as it results in ejaculation into the vagina.[10]
Alternative methodsEdit
As an alternative to natural sexual intercourse, there exists artificial insemination, where sperm is introduced into the female reproductive system. There are also many methods of assisted reproductive technology, such as in vitro fertilization, where one or more egg cells are retrieved from a woman's ovaries and co-incubated with sperm outside the body. The resulting embryo can then be reinserted into the woman's womb.
PregnancyEdit
Main article: Pregnancy
Pregnancy is the period of time during which the fetus develops, dividing via mitosis inside the female. During this time, the fetus receives all of its nutrition and oxygenated blood from the female, filtered through the placenta, which is attached to the fetus' abdomen via an umbilical cord. This drain of nutrients can be quite taxing on the female, who is required to ingest slightly higher levels of calories. In addition, certain vitamins and other nutrients are required in greater quantities than normal, often creating abnormal eating habits. Gestation period is about 266 days in humans. While in the uterus, the baby first endures a very brief zygote stage, then the embryonic stage, which is marked by the development of major organs and lasts for approximately eight weeks, then the fetal stage, which revolves around the development of bone cells while the fetus continues to grow in size.[11]
hope this helps you
brainliest answer please
follow me on Instagram @ishaagopika