¿Cuál es la diferencia entre carácter alifático y carácter anfipático?

What is called the "building block" of life?

Apart of an ecosystem that can restrict the growth of a population is referred to as

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?