A Wisdom Archive on Embryo

Child development is the study or examination of processes and mechanisms that operate during the physical and mental development of an infant into an adult. Pediatrics is the branch of medicine relating to the care of children. It encompasses ages from prenatal to teenagers and even young adults (ages 0-21 years). Terms for stages of age-related physical development include, with their approximate age ranges: Zygote, the point of Conception, fertilization Embryo; in the later stages also cal ...

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Development begins with fertilization, the process by which the male gamete, the sperm cell, and the female gamete, the oocyte, fuse to give rise to a diploid cell, the zygote. In medicine, pregnancy is defined as beginning when a fertilized zygote becomes implanted in a woman's uterus. This occurs when the zygote then becomes embedded into the endometrium (lining of the uterus) where it forms a placenta, for the purpose of receiving essential nutrients through the uterus wall. The umbilical cor ...

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Human development refers to all forms of development above, often in the context of clinical or developmental psychology, or as human development theory (in economics, an outgrowth of welfare economics). Both the psychological and economic fields share a special concern with education and language fluency including literacy and numeracy, and with identification and development of more unique talents into the eco ...

Read more here: » Child: Encyclopedia II - Child - Human development

Main article: Human development Human development refers to all forms of development above, often in the context of clinical or developmental psychology, or as human development theory (in economics, an outgrowth of welfare economics). Both the psychological and economic fields share a special concern with education and language fluency including literacy and numeracy, and with identification and development of more unique talents into the eco ...

Read more here: » Child: Encyclopedia II - Child - Human development

The eponymous alien creature, a lethal predator with consistently exotic abilities and physical attributes, reproduces by parasitizing living victims with embryos or by transmuting them directly into the early alien reproductive stages (egg and facehugger) through unknown means when it lacks a Queen is not present and an established hive. The film crew set up the plot device of the alien having acid for blood in order to prevent the Nostromo's crew from readily killing it with firearms — the spilled blood would have eaten through th ...

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