Respiratory quotient in fish varies from:

Correct option is A

Correct Answer: (a) 0.7 – 1.0
Explanation:
→ Respiratory quotient (RQ) is the ratio of CO₂ produced to O₂ consumed.
→ In fishes, RQ typically ranges from 0.7 to 1.0, depending on whether metabolism is protein-, fat-, or carbohydrate-based.
Information Booster:
→ RQ closer to 0.7 indicates lipid metabolism.
→ RQ near 1.0 indicates carbohydrate metabolism.
→ Used in metabolic and respiration studies.
Additional Information (Other Options): Values outside this range are uncommon for fishes.