How many times the fish opens and closes its mouth in a minute?
Asked by | 6th Jul, 2008, 04:15: PM
The duration of one respiratory cycle in fishes can vary both by species and the time of day, generally from 2 seconds to 4 seconds.That implies that fish opens and closes it's mouth ranging from 15 to 30 times per minute.
Answered by | 7th Jul, 2008, 06:08: AM
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