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.
Temperature, light and wind turbulence are other abiotic factors but they are independent of the size of the drainage system since they can affect a larger region. Biotic factors are the organisms living in the system and their interactions.Many interactions between the abiotic environment are a result of the organisms living processes. Snails can only live in pond where calcium leaches into the water from the bedrock so the abiotic limits where snails can live.est Answer: The abiotic factors do include acidity, turbidity (clarity), nitrogen nutrient concentrations plus dissolved oxygen concentration. These are affected by the catchment or volume of the pond or lake.