Which animal among the following respires via buccal cavity,moist skin and lungs?

Which group of animals respire through lungs?

In insects,oxygen is carried to different tissues by

Given below are four matchings of an animal and its kind of respiratory organ:
$1.$ Silver fish - trachea
$2.$ Scorpion - book lung
$3.$ Sea squirt - pharyngeal gills
$4.$ Dolphin - skin
Choose the correct option.

Explain the structures of respiratory organs for the exchange of gases in various groups/kingdoms of animals.

Which of the following statements is correct?