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

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 magnesium constituting … See more

Cell theory states that cells are the fundamental units of life, it a unity of Protoplasm made of cytoplasm and nucleus surrounded by a cell membrane. that all living things are composed of one or more cells, and t… See more

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 that gene… See more

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. Give… See more

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 amon… See more