The same way humans do:
By breathing in oxygen and then it goes into the system and filters through and they get CO2 as a waste product just like us!
A muscle tetanus!
Please rate brainliest if this helps!
There isn't a specific 'most common eating disorder', but most people would have a disorder known as binge eating disorder, which is eating more than necessary. The other top 2 include anorexia nervosa or bulimia nervosa.
I would say Nucleic Acids
