Adaptations of the fish gill to gaseous exchange

  1. Gills are red- rich blood supply
  2. many tiny gill filaments increase surface area for gaseous exchange
  3. Gill lamellae are flat to help increase their surface area for oxygen exchange
  4. Water enters the mouth and comes out through operculum
  5. Water passes over the gills
  6. The epithelium covering gills is only one cell thick reducing diffusion gradient.
  7. Gill filaments are protected from damage by an operculum
Please find free downloadable notes, exams and marking guides of agriculture, biology, Physics, chemistry etc.  from digitalteachers.co.ug website. Dr. Bbosa Science
CATEGORIES
TAGS
Share This

COMMENTS

Wordpress (0)
Disqus ( )