|
Title: Fish can control buoyancy by: Post by: cb2015 on Mar 29, 2018 Fish can control buoyancy by:
a. holding air in their lungs. b. expelling air from their lungs. c. swift movements of their opercula. d. adjusting the amount of gas in their swim bladders. e. inflating the chambers of their tracheae. Question 2 _____ have the most efficient respiratory system of any living vertebrate. a. Amphibians b. Birds c. Mammals d. Fish e. Nonavian reptiles Title: Fish can control buoyancy by: Post by: syd_daws on Mar 29, 2018 Content hidden
|