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When a human embryo is formed which system is created first?
The first system to form in a human embryo is the nervous system. The neural tube, which will develop into the brain and spinal cord, is one of the earliest structures to develop in the developing embryo.
An embryo becomes a fetus after?
about 8 weeks of development. At this stage, the major organs have formed and the embryo starts to resemble a human being.
What is the result of fertilization of a human embryo?
The result of fertilization of a human embryo is the formation of a zygote, which is a single cell that contains genetic material from both the sperm and the egg. This zygote will undergo cell division and development to eventually form a fetus.
When does heart tissue first form in a human?
Heart tissue begins to form in a human embryo around 3 weeks after fertilization. At this stage, the heart starts to develop from a tube-like structure that eventually grows and matures into a fully functional organ.
When does the human embryo come to be called a fetus?
The human embryo is typically called a fetus around the 9th week of pregnancy. This transition marks the point at which the major structures and organs have formed, and the embryo begins to grow and mature.
