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10 questions
These are organs of fish which supply oxygen. These are.....
operculum
gills
lamellae
Most fish have ........gills on each side of their head.
five
three
four
Bony fish can have between ............ gills on each side.
2 and 3
4 and 5
5 and 7
Choose the correct statement below ...
small fish breathe faster than big fish
big fish breathe faster than small fish
small fish breathe slower than big fish
Gill filaments providing a large surface area for exchange....
blood
water
gases
Fish take in oxygen-rich water through ....
mouth
nose
blood vessel
In the process of respiration of fish, when mouth of fish open and the gill cover will be ....
open
close
open and close
When water moves over the gills filaments , the blood within the capillary network takes up the dissolved ....
carbon dioxide
air
oxygen
Blood moves in and out of the gills through ....
operculum
blood vessels
gills arch
The filaments in fish gills are organized in rows in the...
operculum
blood vessel
gills arch
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