When writing the scientific names for organisms, which are written in Latin, the name for the organism must contain two parts. The first part, genus name, is written in italics and is capitalized. The second part, epithet, or a specific description of the species, is italicized, but not capitalized.
The system for scientific nomenclature for plants and animals started developing in the 18th century. The idea, and the first few thousand scientific names, belong to Swedish scientist Carolus Linnaeus. In his honor, many species' scientific names, including Homo sapiens, include Linnaeus or L. as the third part of their name. This third part of the scientific name for a species is called "describing author" and is added after a particular individual has scientifically described the organism in a refereed journal.
Scientific names for species are written in Latin, a dead language, to ensure that these names stay the same over long periods of time and across language barriers. Scientific naming of species is closely connected to the study of how organisms evolved and how they are related to each other. For instance, the only surviving human species now is called Homo sapiens, whereas in prehistory other species of the genus Homo existed: Homo habilis and Homo erectus. Scientific names for species sometimes change, as new discoveries are made. For example, what had been considered one species turns out to be two, and vice versa.Learn More
The life cycle of the rabies virus is transmission, incubation, early symptoms (prodrome period) and encephalitis phase. Rabies is transmitted to a human or other animal through saliva from an infected animal, in which case transmission occurs from a bite or scratch. The final phases of rabies result in death.Full Answer >
Make an edible animal cell model using Jell-O and a variety of different candies such as M&M'S, gumdrops and gummy worms. A large Ziploc bag is required to set the Jell-O and is used to represent the cell's membrane.Full Answer >
The enthalpy of vaporization is the energy, in the form of heat, that a substance needs to change from a liquid to a gas at a constant temperature and pressure. Enthalpy of vaporization, designated as "delta H vap," is measured in kilojoules per mole of substance. The amount of heat needed to change 2.2 pounds of water into steam is 2,257 kilojoules, or 2,2257 kJ/mol.Full Answer >
French scientist Anselme Payen discovered the enzyme diastase in 1833. Payen, a chemist, later isolated diastase into its concentrated form. Diastase breaks down maltose, a starch, into dextrose, and the enzyme is commonly found in malt, barley and the human pancreas.Full Answer >