Answer:
The concept of population neural coding proposes that a specific object, like a face, is represented across a number of neurons.
Explanation:
Neuron coding is processing the information by neurons, in a way that neurons generate electric impulses for coding. In population coding, the neurons give responses that could combine and that is how the entering information is determined.
The one in my opinion that best describes a leaf is tissue. it can't be the organism because that would be the tree itself. In a like fashion, it can't be the organ because the branches of the tree would be the organs. Since the leaves make up the branches... they would be tissues.