Final answer:
Biohazards refer to dangerous biological materials, such as pathogens, that can cause diseases. The word 'biohazard' combines 'bio-' (life) with '-hazard' (danger), and context clues like safety protocols help to define its meaning.
Step-by-step explanation:
In the context of the sentence, biohazards refer to any biological substances that pose a risk to human health, such as pathogens or contaminated medical waste. The word parts 'bio-' meaning life and '-hazard' meaning danger combined with the provided context clues, like the instruction to wear gloves and the description of the waste as infectious, help determine that biohazards are dangerous biological materials that could potentially cause disease. The safety protocols, such as wearing gloves and disposing of these materials properly, underscore the risks associated with handling biohazards.