Solved MCQs of Biology Class 9
Rickets develops due to deficiency of _____________ vitamin.
B
A
D
C
Inactive pepsinogen in juice require ___________ for its activated form (pepsin)
H2SO4
HCl
HNO3
Saliva
The large intestine is about ……………. meters long.
1.2
1.3
1.4
1.5