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Loss in Biological Definition

Cancer

... symptoms. Systemic symptoms : weight loss , poor appetite and cachexia (wasting), ... . Building of cellular clusters ( foci ). loss of contact inhibition . Low or no need for ... size and shape, variation in cell size and shape, loss of specialized cell ...

Diabetes mellitus

... (either malignant or benign) can also lead to loss of insulin production. Currently , type 1 is ... treated by changes in diet and through weight loss . This can restore insulin sensitivity, even when ... increased fluid intake). There may also be weight loss (despite normal or increased eating), increased ...

Protein

... as fatigue, insulin resistance, hair loss, loss of hair pigment (hair that should be black becomes reddish), loss of muscle mass (proteins repair muscle tissue), ... from increased toxic residues, possibly bone loss due to increased acidity in the blood, foundering ...

Thermoregulation

... were present, since heat production and heat loss vary considerably in different parts of the body, ... about 77. Hence it is clear the chief means of loss are the skin and the lungs. The more air that ... out of the lungs in a given time, the greater the loss of heat. And in such animals as the dog, who do ...

Albumin

... In nephrotic syndrome, this property is lost, and there is more albumin loss in the urine. Because smaller animals (for example rats ) function at a ... Excess excretion by the kidneys (as in nephrotic syndrome ) Excess loss in bowel (protein losing enteropathy) Mutation causing albuminemia ...

Biodiversity

... withstand environmental stress and consequently is more productive. The loss of a species is thus likely to decreases the ability of the system to ... of 200 species a day, most scientists believe that the rate of species loss is greater now than at any time in human history- with extinctions ...

Carbohydrate

... glycosidic bond. The binding between the two sugars results in the loss of a hydrogen atom (H) from one molecule and a hydroxyl group (OH) from ... restriction of carbohydrate consumption as a means to achieving weight loss or overall good health . Problems have been cited for the long term ...

Ebola

... Democratic Republic of the Congo, and Sudan to lose revenue through the loss of people who would have been able to work and benefit their nation's ... much money exactly was lost through these deaths (Busharizi). Another loss in economic revenue has been the deaths of monkeys traded throughout the ...

Warm-blooded

... radiate more heat from the skin), panting or sweating (to increase heat loss through evaporation ). Warm-blooded versus cold-blooded ... the rete mirable, which helps keep heat inside the body, and prevents the loss of heat through the fish's gills into the cold water. Bees . An ...

Extinction

... surviving an adverse change in conditions. Effects that cause or reward a loss in genetic diversity can increase the chances of extinction of a ... Mass Extinction Underway | Biodiversity Crisis | Global Species loss Univ. of Arizona lecture on extinction ...

Redox

... uptake of an electron by a molecule or atom. Oxidation describes the loss of an electron by a molecule or atom. These two terms go together, ... and reduction using the simple mnemonic device "LEO says GER" - the loss of Electrons is Oxidation, while the Gain of Electrons is Reduction. ...

Redox

... uptake of an electron by a molecule or atom. Oxidation describes the loss of an electron by a molecule or atom. These two terms go together, ... and reduction using the simple mnemonic device "LEO says GER" - the loss of Electrons is Oxidation, while the Gain of Electrons is Reduction. ...

Barr body

... in early embryogenisis can induce inactivation of the single X found in male cells. The roles of Xist and Tsix appear to be antagonistic. The loss of Tsix expression on the future inactive X chromosome results in an increase in levels of Xist around the Xic . Meanwhile, on the future active ...

Barbiturate

... moderate amounts, these drugs produce a state of intoxication that is remarkably similar to alcohol intoxication . Symptoms include slurred speech, loss of motor coordination, and impaired judgment. Depending on the dose, frequency, and duration of use, one can rapidly develop tolerance , physical ...

Brain

... enough to fit inside the skull. Brains in medicine The brain, along with the heart, is one of the two most important organs in the human body. loss of function in this organ fufills some definitions of death . Injuries to the brain tend to affect large areas of the brain, sometimes causing major ...

Chromosome

... may be lethal or give rise to genetic disorders. Genetic counseling is offered for families that may carry a chromosome rearrangement. The gain or loss of chromosome material can lead to a variety of genetic disorders . Examples include: Cri du chat syndrome , which is caused by the deletion ...

Collagen

... modification, for which vitamin C is required. This is related to why vitamin C deficiencies can cause scurvy , a disease that leads to loss of teeth and easy bruising caused by a reduction in strength of connective tissue due to a lack of or defective collagen. The white collagen that ...

Enzyme

... is inhibited somehow; in a similar vein, purifications of other enzymes that begin with a preparation containing a protease will often result in loss of the enzyme being purified unless the protease is inhibited or inactivated. See also List of enzymes References Koshland D. ...

Foot and mouth disease

... secretion of stringy or foamy saliva and to drooling; and blisters on the feet that may rupture and cause lameness. Adult animals may suffer weight loss from which they do not recover for several months, and in cows, milk production can decline significantly. Though most animals eventually recover ...

Human

... Cambridge University Press. Rogers, Alan R.; Iltis, David; and Wooding, Stephen. 2004. "Genetic variation at the MC1R locus and the time since loss of human body hair." Current Anthropology 45 (1): 105-108. Sagan, Carl. 1978. The Dragons of Eden , A Balantine Book, ISBN 0345346297 ...

Insulin

... level first and most dramatically manifests itself in impaired functioning of the central nervous system – dizzness, speech problems, even loss of consciousness, are common. This phenomenon is known as hypoglycemia or, in cases producing unconsciousness, hypoglycemic coma (formerly termed ...

Long-term potentiation

... both cells such that A's efficiency, as one of the cells firing B, is increased. Similarly, memories may be forgotten through the weakening or loss of connections. For example, a man might be startled by the sound of a car alarm outside. Sensory cells in the ear record the sound and send it to ...

Marine biology

... breed in specific places, nest or not in others, spend their time as juveniles in still others, and in maturity in yet others. Scientists were at a loss for quite a while as to the location of many species during different parts of their life cycles. In fact where sea turtles travel is still largely ...

Memory

... a strategy to enhance prospective memory. Memory disorders Much of the current knowledge of memory has come from studying memory disorders. loss of memory is known as amnesia . There are many sorts of amnesia, and by studying their different forms, it has become possible to observe apparent ...

Microsatellite

... to allow individuals to be reliably distinguished. The hypervariability arises because the repeated simple sequences cause a high frequency of loss or insertion of additional repeats by confusing the DNA replication machinery. Self-complementary sequences may aid this process. In tumour ...

Mutational meltdown

... Mutational meltdown refers to the process by which a small population accumulates deleterious mutations, which leads to loss of fitness and decline of the population size, which leads to further accumulation of deleterious mutations. A population experiencing mutational ...

Muscle

... Muscular dystrophy is a large group of diseases, many of them hereditary, where the muscle integrity is disrupted. It leads to progressive loss of strength, high dependence and decreased life span. Inflammatory muscle disorders: Polymyalgia rheumatica (or "muscle rheumatism") is an ...

Natural selection

... conditions remain the same, or similar enough that these traits continue to be adaptive, such traits will become more common within populations. loss of the species' ecological niche or crowding-out due to population growth can change drastically the adaptive traits required to survive - in ...

Oncogene

... A mutation within a protooncogene can cause a change in the protein structure, caused by an increase in protein ( enzyme )activity a loss of regulation the creation of a hybrid protein , through a chromosomal aberration during cell division . A distinct aberration in a dividing ...

Osmoregulation

... all the excess water. Osmoregulation in plants There are no specific osmoregulation organs in higher plants . Control of water intake and loss is by means of those internal and external factors which affect the rate of transpiration. Plants share with animals the problems of obtaining ...

Parasitology

... blowfly , which lays eggs on the skins of farm animals, the maggots hatch and burrow into the flesh, distressing the animal and causing economic loss to the farmer, Otodectes cynotis , the cat ear mite, responsible for Canker, and Gyrodactylus salaris , a monogenean parasite of salmon , ...

Plasmid

... cell, e.g., seven different plasmids have been found in E. coli . On the other hand, related plasmids are often 'incompatible', resulting in the loss of one of them from the cell line. Therefore, plasmids can be assigned into incompatibility groups , depending on their ability to coexist in a ...

Plasmolysis

... Plasmolysis is the contraction of cells within plants due to the loss of water through osmosis . It is the cell membrane peeling off of the cell wall and the vacuole collapsing. Plasmolysis occurs when a plant ...

Proprioception

... acquired a stiff and slow movement, which is believed to be the best possible in the absence of this sense. Impairment Apparently, temporary loss or impairment of proprioception may happen periodically during growth, mostly during adolescence. Possible experiences include: suddenly feeling that ...

Reduction

... is to shorten the pronunciation of a word. e.g. wanna, lemme, gimme. In physiology , reduction or reducing is another name for weight loss or dieting . In surgery , reduction is a medical procedure to restore a fracture to a correct alignment. ...

Y chromosome

... over time it appears that the Y chromosome has indeed lost many of its original chromosomes, and has become much smaller. If this damage and loss were to continue unabated, this would lead to the disappearance of all males in any species, including humans. As a result, the only species that ...
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