Biological evidence in forensic science includes organic materials, such as blood, semen, hair, saliva and skin tissue. Forensic scientists use fingernail scrapings and bone to identify victims and criminals. Biological ... More » Science Biology

As defined by the Psychology Dictionary, a biological factor is that which affects the behavior and function of an organism and includes any condition that has a psychological effect on a living being. More » Science Biology

Taxonomy, the science of classifying organisms, is based on phylogeny. Phylogeny attempts to establish the evolutionary history of a species, and taxonomy classifies organisms by this history. More » Science Biology
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Biological inheritance is broadly defined as physical heredity. Heredity, or inheritance in the biological sense, refers to the physical features that offspring inherit from their parents, such as eye color, shape of nos... More » Science Biology

Biological magnification is characterized by the concentration of toxic substances increasing within each of the food chain's successive links. The organisms on the lower levels of the food chain accumulate smaller amoun... More » Science Biology

Biological science, or biology, is the study of living organisms, such as plants, animals and other living organisms. The subject of biology is divided into many separate fields, such as behavior, human anatomy, botany, ... More » Science Biology

To obtain DNA for DNA fingerprinting, a sample of cells from skin, hair, blood, saliva or semen is collected. The white blood cells from the sample are broken open using detergent, and then the usable DNA is separated fr... More » Science Forensic Science