Final answer:
Batesian mimicry occurs when a harmless organism mimics the warning coloration of a toxic one for protection, such as a hoverfly imitating a wasp.
Step-by-step explanation:
When a harmless organism resembles a toxic organism, this is an example of Batesian mimicry. In this type of mimicry, the harmless species adopts the warning coloration of a harmful one to avoid predation.
This resemblance provides the harmless species with protection, as predators tend to avoid them due to the association with the unpalatable or dangerous species they mimic. This can be illustrated through examples such as the bee-like robber fly mimicking the bumblebee or a hoverfly mimicking a wasp.