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Support in Biological Definition

Cancer

... studies have confirmed this association. Further support comes from the fact that lung cancer death ... that offer a variety of practical and support services to people with cancer. support can take the form of ...

Cold-blooded

... so variable, poikilothermic animals do not easily support complex, high-energy organ systems such as brains ... means that a given niche of a given ecology can support three to ten times the number of poikilothermic ... basin ). These often do not have enough food to support a viable breeding population of homeothermic ...

Marfan syndrome

... develop the disease. Without the structural support provided by fibrillin, many connective tissues are weakened, which can have severe consequences on support and stability. A related disease has been found ... Directory Project : Marfan syndrome Marfan support ...

Skeleton

... system is the biological system providing support in living organisms. (By extension, ... from the other two since they lack hardened support structures. Large external skeletal systems support proportionally less weight than endoskeletons of ...

Stem cell

... for the first time federal funds would be used to support research on human embryonic stem cells, but that ... that the federal government would continue to support research involving stem cells from other sources, ... Senator John Kerry (D, MA), had promised to support all types of stem cell research if elected ...

Cytoskeleton

... filaments are: made of vimentins , being the common structural support of many cells. made of keratin , found in skin cells, hair and ... . Neurofilaments of neural cells. made of Lamin , giving structural support to the nuclear envelope. Microtubules Main article: microtubules ...

Edward's syndrome

... Edward's syndrome. External link For more information, stories, support and hope, visit the Trisomy 18 support Foundation Edward's Syndrome ...

Molecular biology

... in the gel are then transferred to a PVDF, nitrocellulose, nylon or other support membrane. This membrane can then be probed with solutions of antibodies. ... will remain in the solution. Alternatively, antibodies coupled to a solid support matrix like Sephadex or Sepharose beads, for example, can be used to ...

Taxonomy

... (though it is obviously a contraction of the two words). Those who support scientific taxonomies have recently criticized folksonomies by dubbing them fauxonomies . In recent years taxonomic classification has gained support from molecular systematics , a branch of bioinformatics that employs ...

Actin

... two components of the cellular cytoskeleton form a three-dimensional network inside an eukariotic cell . Actin filaments provide mechanical support for the cell, determine the cell shape, enable cell movements (through pseudopods ); and participate in certain cell junctions, in cytoplasmic ...

Alfred Russel Wallace

... Wallace had once briefly met Darwin, and was one of Darwin's numerous correspondents from around the world, whose observations Darwin used to support his theories. Wallace knew that he was interested in the question of how species originate, and trusted his opinion on the matter. Thus, he sent ...

Biodiversity

... to their decrease (degrading costs having to be supported by the community). Among the dissenters, some argue that there are not enough data to support the view of mass extinction, and say abusive extrapolations are being made on the global destruction of rainforests , coral reefs , mangrove ...

Bone

... either to a hardened connective tissue or to one of the individual structures, or organs , into which it is formed, found in many animals . Bones support body structures, protect internal organs , and (in conjunction with muscles ) facilitate movement ; are also involved with cell formation , ...

Brain

... learning and other sorts of learning . The brain is primarily made up of two types of cells : glia and neurons . Glia function primarily to support and protect the neurons. The neurons carry information in the form of electrical pulses known as action potentials . They communicate with other ...

Cartilage

... yet elastic. Fibrocartilage Fibrocartilage (also called white cartilage) is a specialised type of cartilage found in areas requiring tough support or great tensile strength, such as between intervertebral disks, the pubic symphisys and at sites connecting tendons or ligaments to bones . ...

Charles Darwin

... did not personally defend his theories in public, though he read eagerly about the continuing debates. He was constantly in ill health, and mustered support through letters and correspondence . A core circle of scientific friends–Huxley, Charles Lyell , Joseph Dalton Hooker , and Asa Gray ...

Common descent

... for all bacteria , archaea , and eukaryotes (see Three domain system ). Analysis of the small differences in the genetic code has also provided support for UCD. The Tree of Life Web Project ...

Convergent evolution

... ) (and other vines ). These rootlets are not derived from a common ancestor, but developed independently as an effective way to cling to whatever support the vine is climbing on. The smelling organs of the terrestrial Coconut crab also developed similar to insects due to the need to detect smells ...

Competitive exclusion principle

... stochastic extinction over longer time-frames). However, such systems tend to be analytically intractable. In addition, many can theoretically support an unlimited number of species. A new paradox is created: Most well-known models that allow for stable coexistence allow for unlimited number of ...

Cryptozoology

... noting that while "the megamouth does show that the oceans have a lot of secrets left to reveal ... The megamouth is not a useful analogy to support the existence of marine cryptids" in general. [2] Also cited is the 2003 discovery of the remains of Homo floresiensis , a descendent of ...

Down syndrome

... to six people with Down Syndrome share an apartment in a normal residential area, taking care of the daily household duties themselves and receiving support from a skilled caregiver in organizing their routines and in dealing with institutions or potential employers. Many children in the UK are now ...

Ernst Haeckel

... micro-organisms that have not been found and almost certainly did not exist. His concept of recapitulation has been disproven. Haeckel did not support Darwin's " survival of the fittest ", rather believing in a Lamarckian inheritance of acquired characteristics. On top of picking several wrong ...

Eugenics

... into the world" ) and James D. Watson ( "Once you have a way in which you can improve our children, no one can stop it." ), have recently spoken in support of "voluntary" eugenics. See also Brave New World Compulsory sterilization Cosmotheism Genetic engineering Genetics ...

Gene

... and the day-to-day functions of the cells that make up tissues and organs . The instrumental roles of their protein products range from mechanical support of the cell structure to the transportation and manufacture of other molecules and to the regulation of other proteins' activities. The genes that ...

Genomics

... that bacterial genes exist in eukaryotic nuclear genomes and that these genes generally encode mitochondrial and plastid proteins, giving support to the endosymbiotic theory of the origin of these organelles . Genetic similarity It is often stated that a particular organism shares ...

Gregor Mendel

... progeny side by side to see if there would be any approximation of the traits passed on to the next generation. This experiment was "designed to support or to illustrate Lamarck's views concerning the influence of environment upon plants." He found that the plants' respective offspring retained the ...

Homunculus

... would require a homunculus to prevent it from becoming an infinite regress. Therefore with these assumptions the Homunculus Argument does not support the theory that mind is wholly due to intelligent acts. The example of Ryle's theory demonstrates another aspect of the Homunculus Argument in ...

Convergent evolution

... ) (and other vines ). These rootlets are not derived from a common ancestor, but developed independently as an effective way to cling to whatever support the vine is climbing on. The smelling organs of the terrestrial Coconut crab also developed similar to insects due to the need to detect smells ...

Intermediate filament

... IFs are structural components of the sarcomeres in muscle cells. Vimentin IFs can be found in fibroblasts and endothelial cells , they support the cell membrane and keep some organelles in a fixed place within the cytoplasm . Peripherin found in peripheral neurons. GFAP (glial ...

Klinefelter's syndrome

... of people having both gender identity disorder and Klinefelter's independently from each other. This observation however is based on the reports of support groups for transgender and transsexual people, no scientific study on this subject has been done. The fact that a person undergoing treatment for ...

Kidney

... opening in the middle of the concave medial border for nerves and blood vessels to pass into the renal sinus. renal column : The structures which support the cortex. They consist of lines of blood vessels and urinary tubes and a fibrous material. renal sinus : The cavity which houses the renal ...

Konrad Lorenz

... later years to allegations that his scientific work had been contaminated by Nazi sympathies: his published writing during the Nazi period included support for Nazi ideas of "racial hygiene", couched in pseudo-scientific metaphors. When accepting the Nobel Prize, he apologized for a 1940 publication ...

Life

... life Main articles: Extraterrestrial life , Xenobiology As of 2005 , Earth is the only planet in the universe known by humans to support life. The question of whether life exists elsewhere in the universe remains open, but analyses such as the Drake equation have been used to ...

Long-term potentiation

... maps when their NMDA receptors were impaired. As expected, these rats performed very poorly on spatial tasks compared to controls, providing more support to the notion that LTP is the underlying mechanism of spatial learning. Doogie mice Enhanced NMDA receptor activity in the hippocampus has ...

Lynn Margulis

... was criticized as a radical and her scientific work was rejected by mainstream biology for many years. Her work has more recently received widespread support and acclaim. Margulis was inducted into the World Academy of Art and Science, the Russian Academy of Natural Sciences, and the American Academy of ...

Marine biology

... areas, for spawning, and feeding. Hydrothermal vents in the ocean floor act as oases for life, as do their opposites, cold seeps . These places support unique biomes and many new microbes have been discovered at these places. How oceanic factors affect distribution of various organisms An ...

Actin

... two components of the cellular cytoskeleton form a three-dimensional network inside an eukariotic cell . Actin filaments provide mechanical support for the cell, determine the cell shape, enable cell movements (through pseudopods ); and participate in certain cell junctions, in cytoplasmic ...

Molecular evolution

... variation in Drosophila via protein electrophoresis , the theoretical results from the infinite alleles model were used by Kimura and others to support the idea that this variation would have to be neutral (or result in excess segregational load). Infinite sites model Related fields An ...

Natural selection

... that reproduce, and IF offspring inherit traits from their progenitor(s), and IF there is variability of traits, and IF the environment cannot support all members of a growing population, THEN those members of the population with less-adaptive traits (determined by the environment) will die out, ...

Osmosis

... opposed and eventually equalled by the pressure exerted by the cell wall , creating a steady state . In fact, osmotic pressure is the main cause of support in plant leaves. When a plant cell is placed in a solution higher in solutes than inside the cell osmosis out of the cell occurs. The water in ...
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