PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Choose the correct statements:
  
Important!
Note: In some questions both the statements are correct, so think and choose the best option.
A)
Statement 1:  Certain animals such as Hydra and Sponges do not possess a circulatory system.
 
Statement 2:  The waste materials such as the carbon dioxide is also removed by air.
                       
 
B)
Statement 1:  Animals such as hydra and sponges require a circulatory system.
 
Statement 2:  In hydra and sponges wastes are removed by the excretory system.
                       
 
C)
Statement 1:  The blood of cockroach is colorless.
 
Statement 2:  The blood of humans is red in colour.