The earliest of roots of science, which included medicine, can be traced to ancient Egypt and Mesopotamia in around … Mehr anzeigen

All organisms are made up of chemical elements; oxygen, carbon, hydrogen, and nitrogen account for most (96%) of the mass of all organisms, with calcium, phosphorus, sulfur, sodium, chlorine, and magn… Mehr anzeigen

Cell theory states that cells are the fundamental units of life, that all living things are composed of one or more cells, and that all cells arise from preexisting cells through cell division. Most cells are very small, … Mehr anzeigen

Genetics is the scientific study of inheritance. Mendelian inheritance, specifically, is the process by which genes and traits are passed on from parents to offspring. It has several principles. The first is tha… Mehr anzeigen

Evolution is a central organizing concept in biology. It is the change in heritable characteristics of populations over successive generations. In artificial selection, animals were selectively bred for specific traits. … Mehr anzeigen

Bacteria are a type of cell that constitute a large domain of prokaryotic microorganisms. Typically a few micrometers in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were … Mehr anzeigen