Final answer:
Müllerian mimicry involves multiple species with genuine defenses like toxins that share similar warning coloration to ward off predators. It's a mutualistic defense strategy distinct from Batesian and Emsleyan/Mertensian mimicry. Correctly describes Müllerian mimicry as a scenario in which A number of animals, non-related and all armed with some defence, look like each other
Step-by-step explanation:
Müllerian mimicry is a biological phenomenon where multiple, often unrelated, species share a similar warning coloration to signal to predators that they are unpalatable or harmful. All participating species in Müllerian mimicry have genuine defenses, such as toxins or foul taste, that deter predators. This form of mimicry differs from Batesian mimicry, where a harmless species imitates the warning coloration of a harmful one, and from Emsleyan/Mertensian mimicry, where a more deadly species mimics a less harmful one.
Mimicry and camouflage serve as aposematic defense mechanisms, providing these animals with a significant survival advantage. The evolutionary goal of such mimicry systems is to enhance the survival of the species involved by reducing the likelihood of predation. In the context of the student's question, option b correctly describes Müllerian mimicry as a scenario in which a number of animals, non-related and all armed with some defense, look alike due to shared warning coloration.