Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Biology Human body
Human blood is red in colour because of the presence of
1
Hemoglobin in red blood cells
2
Hemoglobin in plasma
3
Presence of haemocyanin in RBC
4
More than one of the above
5
None of the above