MCQ
Which one does not fix nitrogen:
- AAzotobacter
- ✓Spirogyra
- CAnabaena
- DNostoc
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$II.$ Myoglobin content is high
$III.$ Sarcoplasmic reticulum are moderate
$IV.$ Aerobic muscles
$V.$ Depends on anaerobic respiration for energy
$VI.$ Less myoglobin content
Select the option with correct statements for red muscle