how sexual reproduction takes place in human? how a baby borns? please explain briefly about each process with diagram.
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Answers
Answer:
Fertilization is the process in which haploid gametes fuse to form a diploid cell called a zygote. To ensure that each zygote has the correct number of chromosomes, only one male gamete can fuse with one female gamete.
Stages of human development
Zygotic stage: The zygote is formed when the male gamete and female gamete fuse.
Blastocyst stage: The single-celled zygote begins to divide into a solid ball of cells. Then, it becomes a hollow ball of cells called a blastocyst, attaching to the lining of the mother's uterus.
Embryonic stage: The major internal organs and external features begin to emerge, forming an embryo. In this stage, the heart, brain, and spinal cord become visible. Arms and legs start to develop.
Fetal stage: Once the formed features of the embryo begin to grow and develop, the organism is considered a fetus. Differentiation and specialization of structures happen during this time.
I hope this helps, I will post links to youtube videos that I found very helpful in understanding reproduction
Explanation: