In an investigation of blood transport dynamics within the vascular system of a small mammal, researchers tracked the path of 34,850 microvascular pathways. They observed that 11.6% of these pathways exhibited a blood flow velocity below the critical threshold required for optimal oxygen delivery. Calculate the number of microvascular pathways that exhibited a blood flow velocity below the critical threshold. Show your working and round your answer to the nearest whole number.
55 exam-style questions on Edexcel IGCSE Biology Transport. Each one has a worked solution and a mark scheme showing where the marks go.