student-name

Nora asked in Science

Qns 3 help need on this

Thank You
student-name

Anshul Ruhela answered this

Dear Student, 
a) Lungs in human helps in taking up of atmospheric oxygen whereas respiration through gills helps in breathing through the dissolved oxygen in water. 
b) Air sacs in human and the gills have large surface area as large surface area helps in exchange of gases at good rate.
Regards