Which among the following living being has respiratory organ but does not have brain ?

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Submitted by examrobotsa on

Q: 10 (SSC/NA)
Which among the following living being has respiratory organ but does not have brain ?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,16,30,13,16,11,6

keywords: 

{'respiratory organ': [2, 0, 1, 0], 'crab': [1, 0, 0, 0], 'brain': [1, 0, 0, 1], 'blood succor': [1, 0, 0, 0]}

Among the options given, the living being that has a respiratory organ but does not have a brain is option 2 - starfish.

Option 1 - crab: Crabs have both respiratory organs (gills) and a brain, so this option is not correct.

Option 3 - blood succor: This option is not a known living being, so it cannot be the correct answer.

Option 4 - silverfish: Silverfish, also known as fishmoths, have a respiratory organ called trachea and they also have a small brain. Therefore, this option is not correct.

In conclusion, the correct answer is option 2 - starfish, as they have a respiratory system (papulae) for gas exchange but do not possess a centralized brain.