Semiconservative replication was not the only model of DNA replication proposed during the mid-1950s, however. In fact, two other prominent hypotheses were put also forth: conservative replication and dispersive replication.
Main idea. Aquatic ecosystems are grouped based on abiotic factors such as water flow, depth,distance from shore, salinity, and latitude. Freshwater ecosystems. The major freshwater ecosystems include ponds, lakes, streams,rivers, and wetlands.
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.