Sounds like someone has a guilty conscience...
If your coursework is put through 'TurnItIn" or another similarity-testing programme by the 2nd marker then quite possibly.
If you have plagiarised then I truly hope you are caught. In future actually put in the effort and do the work yourself rather than stealing other's hard work and/or referencing incorrectly. If you can't put in the work, don't go to Uni.
If you're just asking out of curiosity, then disregard my last couple sentences.