I found you said in the lecture that ticks will not be examined in the exam, right? But I found a past exam question about ticks. So I want to know is it true that ticks will not be examined?
Many questions have mentioned ticks, and you should know what they are (which is explained in the lecture). However what I said in the lecture (which is true) is that you never actually need to use ticks in order to be able to answer the question – it does not matter which way you set out the answer, with ticks or without ticks.