The keyboard can type letters, numbers and punctuation, and also lets you control the computer, using special keys like the START button, and the arrow keys. A Dvorak keyboard is an alternative layout. A keyboard is most commonly attached to a computer via USB port.
3.0 Effects of temperature on aquatic biota. Temperature has long been recognized as an important environmental factor in both terrestrial and aquatic ecosystems in regard to its pivotal role over biological activity (development, growth and reproduction).emperature reductions to stream environments in winter may result from the loss of insulation of the forest canopy under clear-cut conditions in combination with increased radiant cooling; accelerated freezing may lead to anchor ice formation and minimize interstitial habitat for juvenile fish (Hicks et al.
Heat transfer, whether from the air, sunlight, another water source or thermal pollution can change the temperature of water. 1  Water temperature plays a major role in the quality of aquatic life and habitats. Heat flow and the fluctuation of temperature determine what species will live and thrive in a body of water. Water temperature has been defined as the âabiotic master factorâ by JR Brett due to its effect on aquatic organisms 15.