Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Biology Human body
Which part of heart first receives the de-oxygenated blood from the body?
1
Right atrium
2
Right ventricle
3
Left atrium
4
More than one of the above
5
None of the above