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Solution


Q.

Read the passage given below and answer the following questions from (i) to (v).

Our nervous system is responsible for coordinating human body behaviour and transmitting signals between different body parts. In vertebrates it consists of two main parts known as the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The CNS consists of the brain and spinal cord. The PNS consists of nerves that are long fibers connecting the CNS to every other part of the body.

 

(v) Muscle cells have special ______ that change both their shape and their arrangement in the cell in response to nervous electrical impulses.
1 proteins  
2 nerves  
3 amino acids  
4 membranes  

Ans.

(1)