In addition, the hoseâs volume fluctuation decreases the hydraulic system reaction time and efficiency. By comparison, the expansion of metal tube is negligible, which makes it a preferred choice for applications requiring accurate positioning.
Aquatic Ecosystems. Most aquatic ecosystems are limited by salt concentration and the availability of sunlight, oxygen and nutrients. For example The Dead Sea is âdeadâ because the salinity is so high and nothing can grow in it.
CHARACTERISTICS OF AQUATIC AND. TERRESTRIAL ENVIRONMENTS. 1) Copy and complete the following passage, using the words listed in the box below. food, disease, non-living, light, wind, living, oxygen, predators. The abiotic components of an ecosystem include ________ chemical and physical factors such. as temperature, pH, ________, available water and ________, salinity, ________ and substrate. composition. The biotic components of an ecosystem include all the ________ organisms. present and the effects they have on each other. Biotic factors that could affect the. distribution and abundance of a particular species include ________, competition from other.