Final answer:
Effective listening requires concentration even for uninteresting subjects, dismissing them is not a recommended approach.
Step-by-step explanation:
The statement 'Because listening requires such a high level of concentration, uninteresting subjects that cross our listening path should be dismissed' is false. Effective listening skills involve engaging with the content being presented, regardless of whether it initially seems interesting or not. Our brain's tendency towards heuristics, or mental shortcuts, doesn't mean we should dismiss subjects outright. Good listeners develop the ability to concentrate and maintain attention even when the subject doesn't immediately grab their interest, as this is a critical skill for learning and communication.