Question

Which part of the body takes care of removing liquid and gaseous wastes from the body?

Answer 1

Primarily, the colon, kidneys (food digestion) and the lungs (respiration).

Explanation:

The colon is the final stage in the digestive process, which recovers liquid which is then processed by the kidneys. The kidneys do the actual separation/concentration of waste fluids for excretion.

The colon also collects and expels any gaseous wastes and by-products from the digestion process. The lungs are also a key organ for the removal of waste gas products from respiration.

See also:
www.healthblurbs.com/human-body-waste-metabolic-waste-products-for-excretion/

and for a simpler explanation:
http://www.cyh.com/HealthTopics/HealthTopicDetailsKids.aspx?p=335&np=152&id=2283