Required Practical - Estimating Population Size

Science: KS3, topic 1.3.13

Test yourself on Required Practical - Estimating Population Size

  • A scientist evaluates a quadrat by counting individual organisms or recording the percentage of the quadrat covered by an organism, such as grass. What is not a suitable way to evaluate the contents of a quadrat?

  • Which of these are correct for using quadrats to estimate a population size?

  • Complete these steps of the method for estimating population size using quadrats.

  • A survey covers 80m2 of habitat. Quadrats covering 4m2 in total contain 16 snails. What is the estimated population size of snails in the whole habitat?

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