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Organisms may respond to temporal rather than spatial gradients.
Prenatal Environment
The set of environmental factors, including nutrition, stress, maternal health, and external toxins, that influence the fetus during pregnancy.
Birth
The process of giving birth to offspring; it marks the culmination of pregnancy in mammals, including humans, leading to the delivery of one or more newborns.
Cephalocaudal Development
A pattern of growth where physical development starts from the head and moves towards the feet.
Embryo
An early stage of development in multicellular organisms, in humans, it refers to the period from fertilization until the eighth week of pregnancy.
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