Trusted by millions of Kenyans
LoginRegister
Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Browse exam papers
Or go directly to:
Class notes Holiday assignments Topical questions Other resources

Explain how a finned fish is adapted to locomotion in water

Explain how a finned fish is adapted to locomotion in water.

Answers

Felix
-streamlined body to reduce resistance/friction )to swim smoothly)
-the vertebral column consists of a series of vertebrae held together loosely so that it is ?exible.
-myotomes/muscles associated with vertebral column produce movement
-the sideways and backwards thrust of the tail and body against water results in resistance of water pushing the fish sideways and forwards in a direction opposed to thrust.
-?exible so as to maintain forward thrust
presence of fins help in propulsion/balance/paired fins (pectoral and pelvic) for controlling pitch and slow down movement/unpaired ?ns (dorsal, ventral, anal) for yawing and rolling (caudal) for swimming/propulsion and steering/change of direction
presence of swim bladder to make fish buoyant
-scales tip towards the back to provide smooth surface.
-body covered with mucus to reduce friction
?attened surface for easy ?oating
Anganifelix answered the question on April 18, 2018 at 12:56

Answer Attachments

Next: Explain how a fish is adapted to living in water

Previous: Name the main parts of the vertebral column giving the types of bones found in each part

View more Biology Questions and Answers  |  Return to Questions Index

Exams With Marking Schemes

Related Questions