Verbal Ability – Parajumble – Complex computational elements of the CNS


Slot – 1 – VA


Q. The four sentences (labelled 1, 2, 3, 4) given below, when properly sequenced would yield a coherent paragraph. Decide on the proper sequence of the order of the sentences and key in the sequence of the four numbers as your answer.

1. Complex computational elements of the CNS are organized according to a “nested” hierarchic criterion; the organization is not permanent and can change dynamically from moment to moment as they carry out a computational task.
2. Echolocation in bats exemplifies adaptation produced by natural selection; a function not produced by natural selection for its current use is exaptation — feathers might have originally arisen in the context of selection for insulation.
3. From a structural standpoint, consistent with exaptation, the living organism is organized as a complex of “Russian Matryoshka Dolls” — smaller structures are contained within larger ones in multiple layers.
4. The exaptation concept, and the Russian-doll organization concept of living beings deduced from studies on evolution of the various apparatuses in mammals, can be applied for the most complex human organ: the central nervous system (CNS).

Answer: 2413

Solutions:
Sentences 2-4 are a linking pair. 2 talks about exaptation in bats with regard to the growing of feathers for insulation and sentence 4 states where the exaptation concept can be applied – the most complex human organ: the central nervous system (CNS).
Sentences 3-1 are also a pair. Both are about the structural aspects of exaptation. Sentence 3 states that smaller structures are contained within larger ones in multiple layers while sentence 1 states that the CNS is organized according to a “nested” hierarchic criterion.
The 2-4 pair will come before the 3-1 pair since the 2-4 pair introduces the concept of CNS which is then concluded by the 3-1 pair.
Hence, the correct sequence is 2431.


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