Alternation of generation – Alternation of haploid sexual and diploid asexual generation in the life cycle of an animal.
Autonomy – Breaking of a body part.
Dioecious – Animals in which male and female reproductive organs occur in separate individuals.
Hermaphrodite – Animals with both male and female reproductive organs.
Mersentery – A thin double walled epithelial membrane that support alimentary canal and other organs in the abdominal cavity.
Regeneration – Act of growing a new body part which has been injured or lost.