depends
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∙ 11y agoHuman organs generally finish developing within the first few years of life, but some continue to grow and mature into adolescence and early adulthood. The brain, for example, is not fully developed until the mid-20s. However, organs like the heart and lungs are typically fully functional by early childhood.
The metabolic rate does change with the development of an animal from a zygote to adult because of the development of the organs. As growth occurs the organs fully develop.
The lungs are the last organs to develop in utero. They are generally developed enough to be able to perform breathing at about 32 weeks, or 7 1/2 months.
In a hermaphrodite human body, both male and female reproductive organs may develop. However, the functionality of these organs can vary, as they may not both be fully functional for reproduction. It is possible for a hermaphrodite to have one functional set of reproductive organs, both, or neither.
Once a foetus is fully developed it has exactly the same organs as a fully grown human.
In the first three weeks, the embryo has formed the forebrain, the midbrain and the hindbrain. In your second trimester, the major structures of the brain are in place and functioning. From this point the brain and organs continue to develop.
About 17 days after fertilization.
During this time period, the embryo is known as a fetus. It continues to grow and develop, with its organs maturing and becoming more functional. By the time of birth, the fetus is fully developed and ready to survive outside the womb.
No.
lungs
Endoderm
Yes.