- (A) Gills
- (B) Eustachian tube
- (C) Middle ear
- (D) Lungs
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- (A) 10 – 100 times
- (B) 10 – 1000 times
- (C) 100 – 1000 times
- (D) 1000 – 10000 times
- (A) 25%
- (B) 10%
- (C) 5%
- (D) 1%
- (A) 10 nm
- (B) 20 nm
- (C) 30 nm
- (D) 40 nm
- (A) Cytohrome c
- (B) Cytochrome a
- (C) Cytochrome a3
- (D) Cytochrome b
- (A) Sweet fluid
- (B) Sore Fluid
- (C) Poisonous Fluid
- (D) Salty Fluid
- (A) Ecosystem
- (B) Community
- (C) Habitat
- (D) Niche
- (A) Prokaryotae
- (B) Plantae
- (C) Monera
- (D) Protista
- (A) Phylum
- (B) Family
- (C) Genus
- (D) Order
- (A) Protoctista
- (B) Prokaryotae
- (C) Archae
- (D) None of these
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