1. A filter flask is made up of heavy, transparent glass and suction pump at one side. This kind of flask is used for filtering or distillation of substances and is not the best option for measuring as it is not accurate.
2. An Erlenmeyer flask is a conical flask that is best suitable for titration and for storing chemicals.
3. Volumetric flasks are the best kinds for preparing accurate volumes. They are used for making accurate measurements of solutions.
</span><span>Allopatric speciation is were a single species has been separated so long they have both evolved slightly in different "directions" that prevent them from breeding after being reintroduced.</span>
