Avtor: Mojca Mlakar

Viri: https://eucbeniki.sio.si/nar7/2009/index5.html https://sl.wikipedia.org/wiki/Ka%C4%8Djerepi https://sl.wikipedia.org/wiki/Morske_zvezde https://sl.wikipedia.org/wiki/Morske_lilije https://sl.wikipedia.org/wiki/Morski_je%C5%BEki https://www.slideserve.com/karis/igloko-ci