Here are the answers for the our ‘World Ocean Day 2020’ colouring sheet:
The figure has been adapted from:
Kryvi, H., Rusten, I., Fjelldal, P.G., Nordvik, K., Totland, G.K., Karlsen, T., Wiig, H. and Long Jr, J.H., 2017. The notochord in Atlantic salmon (Salmo salar L.) undergoes profound morphological and mechanical changes during development. Journal of anatomy, 231(5), pp.639-654.