This free course was first published in December 2020.
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Week 2, Figure 1: webphotographeer / iStock / Getty Images
Week 2, Figure 2, left: Emma Smith
Week 2, Figure 2, right: Image by Sarah Martin from Pixabay
Week 2, Figure 3, left: Image by Michelle Maria from Pixabay
Week 2, Figure 3, 2nd left: © Elodie.Vialleton
Week 2, Figure 3, middle: Image by Pexels from Pixabay
Week 2, Figure 3 2nd right: © Jerome.Devaux
Week 2, Figure 3, right: © Helene.Pulker
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