4.2 Recall the uses of quadrats to estimate the population size of an organism in two different area.
Quadrating is a method of sampling in locations to find out the population at a location and to compare to the population at different locations. Quadrats are based on squares that can be made of any material such as wood, metal, strings etc. Quadrats are used to count the population in a particular area, and is used to sample the area and the number of individuals in an area. This method would be repeated several times for an approximate estimate of the population size.
Picture of a person using Quadrats to sample: