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The study of a habitat requires the use of sampling instruments, as it is not possible to count every individual organism living there - Junior Cycle Science - Question a - 2009
Question a
The study of a habitat requires the use of sampling instruments, as it is not possible to count every individual organism living there. The photograph shows a pupil... show full transcript
Worked Solution & Example Answer:The study of a habitat requires the use of sampling instruments, as it is not possible to count every individual organism living there - Junior Cycle Science - Question a - 2009
Step 1
How is random sampling achieved when using a quadrat?
Answer
Random sampling using a quadrat can be achieved by employing a method such as throwing the quadrat randomly onto the ground, allowing for an unbiased selection of sampling sites. This technique ensures that every area within the habitat has an equal chance of being sampled, which promotes a fair representation of the biodiversity present.
Step 2
Give two different types of data collected (two different tasks performed) at each site in the habitat when using the quadrat.
Answer
One: Identify and record the names of different plant or animal species present within the quadrat. This could include species such as clover, dandelion, or grass.
Two: Measure the frequency or percentage of each species present. This involves counting the number of individuals of each species within the quadrat and calculating the proportion relative to the total number of organisms observed.