MOLLUSC

The names of the diferent types of mollusc that appear in the video, are not going to appear in the exam, so: don´t panic! Just remeber the classification we have seen in class ( with one shell, with 2 shell, with internal sheel and without sheel) like the pictore below. 

And remember, you can write MOLLUSK (US English) or MOLLUSC (UK English), both are correct.