Transcribed Image Text: QUESTION 11 1. Control of fluid flow is vital for efficient respiration. With the development of more complex structures to alter fluid flow in aquatic ancestors, fishâ

Transcribed Image Text: QUESTION 11
1.
Control of fluid flow is vital for efficient respiration. With the development of more
complex structures to alter fluid flow in aquatic ancestors, fishâ |
fill their swim bladder with 02 to facilitate gas exchange to tissues
drop their diaphragm muscle to open up the buccal cavity and bring in fresh water
before expelling 02 poor water out
expand the buccal cavity to draw water in before forcing it through gills and out
the opercular cavity
draw fluid through the opercular valve during inhalation, across the capillary beds in the
gills, and out the oral opening