What did Schleiden and Schwann conclude about cells? By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the
What causes epidermal nevus? Most epidermal nevus syndromes are thought to be caused by a gene mutation that occurs after fertilization of the embryo (postzygotic
¿Cuántos tipos de recintos fiscalizados existen en México? Hay de dos tipos de recintos fiscalizados, los concesionados, que son aquellos lugares ubicados dentro de los