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.
Depth, rate of flow, temperature and quality of water are all characteristics that affect freshwater biome plants (W3). Sunlight is an essential factor which supports life of freshwater biome plants (W3). Figure #1: Lily pads are often found floating on shallow lakes or ponds. (Image source: http://www.townepond.net/images/LilyPads2.jpg) In streams and rivers vegetation is usually found along the edge of the water.