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Bacteria
Bacteria are microscopic single-celled organisms capable of rapid growth and division.
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Bacteria are microscopic single-celled organisms capable of rapid growth and division.
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Balloon, vehicle that can rise within Earth's atmosphere because its total weight is less than that of the air it displaces. This principle was first enunciated by Greek mathematician and inventor Archimedes.
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The “beartrap” was a Canadian innovation designed in the 1960s to enable the safe operation of helicopters from destroyer-size ships. Known formally as the Helicopter Hauldown and Rapid Securing Device (HHRSD), it is now an integral part of all Canadian frigates. The beartrap revolutionized maritime helicopter operations and was adopted by other navies.
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From 1862 to 1874 the HBC trader became Her Majesty's Hired Survey Ship Beaver. After the HBC sold the ship in 1874, it was used as a workhorse and tow until 1888, when it was wrecked in the First Narrows in Vancouver harbour. Only a few relics remain.
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Biochemistry, encompasses the study of the chemical nature of living material and of the chemical transformations that occur within it.
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Biodiversity is the variety of life (genetic, species and ecosystem levels) on Earth or some part of it. It includes all living forms, plants, animals and micro-organisms. It is the natural wealth of a region that provides resources and ecological services.
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The word bioethics is formed from the Greek word for life (bios) and the traditional word for the systematic study of right conduct (ethics).
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For example, in British Columbia, the Coastal Western Hemlock Zone is one of 14 biogeoclimatic zones. It occupies high precipitation areas up to 1000 m elevation west of the coastal mountains from the Washington to Alaska borders and beyond.
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Ecology is subdivided into 3 fields of study: autecology (relations of individual species or populations to their milieu), synecology (composition of living communities) and dynecology (processes of change in related communities).
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Biological Oceanography is a branch of oceanography that studies living organisms (ie, the biota) in the sea in relation to their environments.
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A biological product is a substance derived from a living organism and used for the prevention or treatment of disease. Biologicals are usually too complex for chemical synthesis by a laboratory. These products include antitoxins, bacterial and viral vaccines, blood products and hormone extracts.
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Biological studies of individuals and groups of organisms can occur at various levels (eg, molecular, cellular, anatomical, functional, behavioural, ecological and evolutionary).
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Biomass energy, or bioenergy, is the energy stored in biomass — that is, nonfossil organic materials such as wood, straw, vegetable oils and wastes from forestry, agriculture and industry, as well as municipal solid waste.
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BIONESS (Bedford Institute of Oceanography Net and Environmental Sampling System) is a multiple-net sampler for ZOOPLANKTON and micronekton (pelagic animals 1-10 cm in length). It uses a new design concept, with nets arranged horizontally rather than vertically, as in earlier multiple-net samplers.
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A biosphere reserve represents one of the world’s important ecosystems and is divided into three zones: a protected core zone (such as a park or wildlife area), a buffer zone around the core, and a transition zone that fosters sustainable economic and cultural activity. The World Network of Biosphere Reserves includes 686 sites around the world, 18 of which are in Canada. The network is part of the larger Man and the Biosphere Program of the United Nations Educational, Scientific and Cultural Organization (UNESCO). Biosphere reserves are designated by UNESCO to help conserve biodiversity, demonstrate sustainable development and build the local community’s capacity to deal with human and environmental issues.
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