how a human child is produced
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by fusion of a male and a female gamete that results in the formation of zygote that further develops into embryo.
aayushdas31pahd0m:
what is the meaning of zygote and embryo?
was my answer not brainliest.
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Every human being begins life as a single cell, formed when father's sperm fertilises mother's egg. ... If the egg is not fertilised within 12 hours or so of being released, it dies; it cannot develop further.
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