"With rising health care costs and 30 percent of privately insured adults enrolled in high-deductible health care plans, calls for greater health care price transparency are increasing. In response, health plans, consumer ...
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(Medical Xpress)—New research from the University of Adelaide shows that iodised salt used in bread is not enough to provide healthy levels of iodine for pregnant women and their unborn children.
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Dawn triggers basic biological changes in the waking human body. As the sun rises, so does heart rate, blood pressure and body temperature. The liver, the kidneys and many natural processes also begin shifting ...
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When the time came to vaccinate her 4-year-old daughter, Yelena Hlushko hesitated, spooked by widespread fears in Ukraine about vaccines and by a boil her older child developed after an immunization shot. ...
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A social media push boosted the number of people who registered themselves as organ donors 21-fold in a single day, Johns Hopkins researchers found, suggesting social media might be an effective tool to address the stubborn ...
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By the time 10-year-old Sarah Murnaghan finally got a lung transplant last week, she'd been waiting for months, and her parents had sued to give her a better chance at surgery. Her cystic fibrosis was threatening ...
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Early exposure to BPA (bisphenol A) – an additive commonly found in plastic water bottles and soup can liners – causes an increased cancer risk in an animal model of human prostate cancer, according to University of Illinois ...
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A mother's exposure to triclocarban, a common antibacterial chemical, while nursing her babies shortens the life of her female offspring, a new study in rats finds. The results were presented Monday at The Endocrine Society's ...
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Exposing developing tissue to low levels of the plastic bisphenol A, commonly known as BPA, is linked to a greater incidence of prostate cancer in tissue grown from human prostate stem cells, a new study finds. The results ...
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Four people have died from the MERS virus in Saudi Arabia, bringing the death toll from the SARS-like virus in the kingdom to 32, the health ministry said on its website Monday.
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New research published in The Lancet Infectious Diseases provides the first complete viral load profile— a comprehensive clinical description of where and how much of the virus circulates through the body— of a patien ...
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Scientists at the University of Massachusetts Medical School have developed a novel transgenic system which allows them to remotely activate individual brain cells in the model organism Drosophila using ambien ...
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(AP)—A court hearing over organ donation rules is on hold after the Pennsylvania girl at the center of the lawsuit received a lung transplant.
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The formation of a 'body plan' during embryonic development is driven by the distribution of signaling molecules called morphogens in the embryo, determining front from back and left from right. Atsushi Miyawaki, ...
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The global death toll from the SARS-like virus MERS has risen to 33, after two new fatalities in Saudi Arabia, the World Health Organization (WHO) said on Friday.
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In biology, an organism is any living system (such as animal, plant, fungus, or micro-organism). In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homeostasis as a stable whole. An organism may either be unicellular (single-celled) or be composed of, as in humans, many billions of cells grouped into specialized tissues and organs. The term multicellular (many-celled) describes any organism made up of more than one cell.
The terms "organism" (Greek ὀργανισμός - organismos, from Ancient Greek ὄργανον - organon "organ, instrument, tool") first appeared in the English language in 1701 and took on its current definition by 1834 (Oxford English Dictionary).
Scientific classification in biology considers organisms synonymous with life on Earth. Based on cell type, organisms may be divided into the prokaryotic and eukaryotic groups. The prokaryotes represent two separate domains, the Bacteria and Archaea. Eukaryotic organisms, with a membrane-bounded cell nucleus, also contain organelles, namely mitochondria and (in plants) plastids, generally considered to be derived from endosymbiotic bacteria. Fungi, animals and plants are examples of species that are eukaryotes.
More recently a clade, Neomura, has been proposed, which groups together the Archaea and Eukarya. Neomura is thought to have evolved from Bacteria, more specifically from Actinobacteria.
This text uses material from Wikipedia licensed under CC BY-SA
