Subject :NSO Class : Class 3
Select the one that does not belong to that organ system to which the other three belong.
A Brain
B Spinal cord
C Nerves
D Lungs
Ans 1:
Class : Class 3
Ans 2:
Class : Class 6
D is ans
Ans 3:
Class : Class 2
Ans 4:
Class : Class 5
Ans 5:
Class : Class 9
how?just how is it not b
Ans 6:
Class : Class 3
Because the brain, spinal cord and nerves are the nervous system but the lungs are the respiratory system.