Sentence rearrangement (a) Para Jumbles is one of the easiest as well as the trickiest section that you could face in the CAT exam. Usually, this feels to be easier because you can connect the 4 options into a group of two but grouping those two into one is trickier. Basically, you must pick 1 out of 24 possibilities. In the CAT previous year papers, we saw that there were 4 questions on an average per slot in Sentence Rearrangement. CAT 2020 saw a reduction of questions from 34 to 26 in VARC section because of which the average no. of questions got reduced from 4 to 3. The best place to start your online CAT preparation is the actual CAT Exam are the actual CAT Question Paper. We at 2IIM Online CAT Coaching offer you exactly that, in a user-friendly format to take value from this.
Question 25 : The four sentences (labelled A, B, C, D) below, when properly sequenced would yield a coherent paragraph. Decide on the proper sequencing of the order of the sentences and key in the sequence of the four numbers as your answer:
A. 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.
B. 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.
C. 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.
D. 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).
DA is a link. D talks of various concepts being applied to the central nervous system. Sentence A is about the central nervous system. D, however, is not the opening sentence of the paragraph, as it talks of the 'exaptation' concept and 'Russian doll organisation' concept, the meaning of which is not clear from D. B explains what exaptation is and C what Russsian doll organisation is. So, BCDA is the right order.
The official answer puts C after D which is incorrect, as the Russian Doll concept is introduced in C.
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