Biology Essays and Term Papers

of antibodies in response to the presence of an antigen, as from vaccination or exposure to an infectious disease. Adrenal: 1.At, near, or on the kidneys. 2. 2 Of or relating to the adrenal glands or their secretions. Aids: A severe…

suspected that infants must benefit from the close physical attention of their caregivers, but the extent and nature of the benefit was unclear. Now an increasing amount of biological research on animals is determining that while a number of factors…

thin, fragile spiders, with an average body length of 5.5mm in length, and a leg length of up to 30mm. These long leg lengths are at an advantage for the Pholcidae spiders when hunting other spiders, so that they go undetected whilst approaching…

Mendel was born on July 22, 1822, in Heizendorf, Austria. He was the only son of a peasant farmer. In 1843 he began studying at the St. Thomas Monastery of the Augustinian Order in Brünn. He was ordained into the priesthood in August of 1847.…

instructions of the genes are made of molecules of ribonucleic acid, or RNA. RNA, like DNA, is a nucleic acid. It differs from DNA in 3 ways. First, RNA consists of a single strand of nucleotides instead of the two strands that form the double helix.…

- Curtis, PhDC Summary Dr. Curtis' lecture was one of healthcare and how it relates to his profession, chiropractic medicine. He also hit on health in general and medications. Dr. Curtis started rather quite abruptly with his self helping theories…

in tobacco has grabbed scientists' attention. A number of studies are showing that the chemical nicotine can trigger a slew of brain mechanisms. Many appear to be positive. Researchers now are weeding out nicotine's behavioral, cognitive and addictive…

spent a great deal of time focusing on humor and laughter, scientists mostly ignored the subject. In recent years, however, several groups of researchers started to scrutinize this form of merriment. Their investigations are shedding light on how the…

affect growth in babies, whilst in the womb and after they are born. It is true that growth can be directly affected, and I will describe how in the sections below. For a baby to be born small for gestational age (SGA), or to fail to develop in the…

a factor which might affect the movement of water in and out of cells. Introduction Osmosis is the movement of water in and out of cell membranes, which act as semi-permeable membranes. Semi permeable membranes are cells, which only take in…