Excretion is the removal of
- waste products of metabolic reactions
- substances in excess of requirements (such as water)
- Spent/used hormones
Substances excreted from the bodyEdit
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.