Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Biology Human body
The contraction and expansion of the walls of food pipe is called _____ movement.
1
Peristalsis
2
Gastric
3
Oscillatory
4
More than one of the above
5
None of the above