Flashcards
Biology 3.1.1 Gaseous exchange in boney fish
Flashcards do conjunto (7)
- 1What is the buccal cavity?The mouth of the fish
- 2Why must fish have lots of gasous exchange?They are very active
- 3How are gills adapted so that more gaseous exchange can occur?They have thin layers so there is a short diffusion pathway
they haev a large surface area - 4What is countercurrent flow?Where two fluids flow in opposite directons
- 5How do fish use countercurrent flow?The blood and water flow in opposite directions
- 6What is the operculum?A boney flap that covers and protects the gills
- 7Explain the opercular pumpThe mouth opens and water moves into the buccal cavity. The mouth closes and the floor of the buccal cavity is raised, increasing the pressure and pushes water over the gills so that gaseous exchange can occur.
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- O usuário eliminou as informações de disciplina FlashCards sobre Biology 3.1.1 Gaseous exchange in boney fish, criado por Usuário eliminado em 07-06-2019.
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- Criado por Sam Gunnell · 14 fev 2019
- Copiado por Sam Gunnell · 7 jun 2019
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