Mr Downie is joined by fisheries scientist Prof Ken Whelan and Herpetologist Ollie Thomas.

This episode is based on the Metabolism of Conformers and Regulators Unit of the SQA Higher Biology Course.

You can ask questions or get in touch  via @BiologyHigher on Twitter

This podcast is sponsored by Leckie textbooks, revision guides and practice papers; everything you need to learn, review and prepare for your SQA Exams. Browse the books at www.leckiescotland.co.uk

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Thanks also to Education Scotland for their support.

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