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Examine the photograph of a fish shown below. a) Name the fins responsible for the following during swimming. i) Balance, break and change direction. ii) Prevent fish...

      

Examine the photograph of a fish shown below.
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a) Name the fins responsible for the following during swimming.
i) Balance, break and change direction.
ii) Prevent fish from rolling and yawing
b) Explain the process of gill ventilation between part labelled S to part labelled T.
c) State one adaptation each for the structures labelled K and L.
d) Name the parts labelled U and W.

  

Answers


sharon
a) Pectoral (fin) ;
Pelvic (fin);
ii) Dorsal (fin) ;
Ventral /anal (fin);
b) Muscles of mouth floor contract; mouth opens volume inside decreases and pressure in the mouth decreases; water rushes into mouth. Muscles of mouth floor relax and mouth closes;
Volume in mouth decreases and its pressure increases; water moves to part labelled T.
c) K - Long transverse process to provide large surface areas for muscle attachment;
L - Antagonistic muscles which contract and relax alternatively;
d) U - Scale;
W - Operculum/gill cover;
sharon kalunda answered the question on May 23, 2019 at 14:29


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