During the fourth week of prenatal development, the urogenital system becomes apparent, and Leg buds emerge.
This is further explained below.
<h3>What is prenatal development?</h3>
Generally, During the gestation period of a viviparous mammal, both the embryo and the fetus undergo growth, which is referred to as prenatal development.
Fertilization, which marks the beginning of the germination stage of embryogenesis, is followed by the continuation of development in the fetal stage, which lasts until delivery.
In conclusion, The urogenital system starts to become visible around the fourth week of fetal development, at the same time as leg buds start to form.
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Explanation:
Complete question:The researchers discovered that the 12 populations could be organized into 3 distinct species. Populations a, b, and c each belong to a different species.
Use the data in the grid to sort each population to the species to which it belongs.
Species 1(A): D F H I K
Species 2(B): L E
Species 3(C): G J
