Home of real teaching & learning
  • Full support for teachers
  • Focus on critical thinking
  • Engaging classroom activities
  • Integrated student eBook
  • Assessed tasks / qBank
  • Practice exam questions

The InThinking Guarantee: Our sites are written by expert practitioners and not by AI

See our AI policy

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Don't miss out, find out!

3.1 Collecting Species Diversity Data (answers)

This activity will provide some exam-style practice on Simpson's reciprocal Index and how you collect the data. Student Task 2. The following data was collected before and after the release of sewage into a stream. Before release After release 2 20 10 0 4 4 a) Calculate Simpson's Reciprocal Index for before and after release of the sewage. Remember to show your working. [3] Before Release 2+10+4 = 16 16(15) / ∑ 2(1)...

Help