Brainlies ! me : )
the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Decomposition and redox  

Explanation:

2Ni₂O₃ ⟶ 4Ni + 3 O₂

This can be classed as a decomposition reaction, because a compound is decomposing into simpler substances.

It can also be classed as a redox reaction. The oxidation number of Ni decreases (reduction) from +3 in Ni₂O₃ to 0 in Ni, while the oxidation number of O increases (oxidation) from -2 in Ni₂O₃ to 0 in O₂.

Among the many types of reactions are:

Combination Decomposition Single displacement Double displacement Reduction-oxidation Precipitation

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later