1. Describe the five chemical water quality parameters
2. Name the elements/ compounds responsible for the electrical conductivity of water
3. What it is the effect of TDS( total dissolve solids) in water.

the answer is cell division : )

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.  

plants absorb water from the soil by osmosis. root hair cells are adapted for this by having a large surface area to speed up osmosis. the absorbed water is transported through the roots to the rest of the plant where it is used for different purposes: it transports dissolved minerals around the plant.