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Plasmodium coatneyi is a parasitic species that is an agent of malaria in nonhuman primates. P. coatneyi occurs in Southeast Asia. [citation needed] The natural host of this species is the rhesus macaque (Macaca mulatta) and crab-eating macaque (Macaca fascicularis fascicularis), [1] but there has been no evidence that zoonosis of P. coatneyi can occur through its vector, the female Anopheles ...
In 1968 Campbell joined the Department of Biology at Stanford University, where he led his own laboratory. [1] He was appointed to the Barbara Kimball Browning endowed chair in 1992. [2] Campbell was the editor of the Annual Review of Genetics from 1985 to 2012. [8] [9] [10]
In vitro (Latin for "in glass"; often not italicized in English usage [3] [4] [5]) studies are conducted using components of an organism that have been isolated from their usual biological surroundings, such as microorganisms, cells, or biological molecules.
The LD 50 ("Lethal Dose 50%") test is used to evaluate the toxicity of a substance by determining the dose required to kill 50% of the test animal population. This test was removed from OECD international guidelines in 2002, replaced by methods such as the fixed dose procedure , which use fewer animals and cause less suffering.
Light micrograph of a moss's leaf cells at 400X magnification. The following outline is provided as an overview of and topical guide to cell biology: . Cell biology – A branch of biology that includes study of cells regarding their physiological properties, structure, and function; the organelles they contain; interactions with their environment; and their life cycle, division, and death.
Neil Allison Campbell (April 17, 1946 – October 21, 2004) was an American scientist known best for his textbook, Biology, first published in 1987 and repeatedly through many subsequent editions. The title is popular worldwide and has been used by over 700,000 students in both high school and college -level classes.
Inputs to the modern synthesis, with other topics (inverted colours) such as developmental biology that were not joined with evolutionary biology until the turn of the 21st century [103] Biologists, alongside scholars of the history and philosophy of biology, have continued to debate the need for, and possible nature of, a replacement synthesis.
In cellular biology, active transport is the movement of molecules or ions across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.