Biology · Circulatory System
भ्रूण अवस्था (Fetus) में मानव हृदय प्रति मिनट औसतन कितनी बार धड़कता है?
- 1110 - 120 बार
- 290 - 100 बार
- 3140 - 160 बार✓
- 460 - 80 बार
सही उत्तर देखें
140 - 160 बार
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