Subject :Sam Class : Sample
Which of these organ systems gives shape and support to our body and protects the important organs of the body such as lungs, brain, liver, heart, etc.?
A 
B 
C 
D 
not clear which organ system D is
Ans 1:
Class : Class 6
Ans 2:
Class : Class 8
C
Ans 3:
Class : Class 4
C is the correct answer.
Ans 4:
Class : Class 3
interesting facts