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<span>A mirror neuron is a neuron that fires both when an animal acts and when the animal observes the same action performed by another. Thus, the neuron "mirrors" the behavior of the other, as though the observer were itself acting. Such neurons have been directly observed in primate species.</span>
I think the answer is:
spreading of the disease, might result in more health issues, deaths may be a result too
In the domain Eukaryota, there are two kingdoms that always have cell walls: Fungi and Plantae (plants)
Hope this helps :D
The role of species in an ecosystem, consisting of such things as what it eats, when it eats, and where it lives is niche.