What are three types of homologies that can be seen in organisms? Give example of each homologous?

1. Iterative homology: e. g. antenna and leg of fiddler crab

2. Ontogenetic homology: e. g. radular teeth of veliger, feathers of chicken and hen

3. Di-polymorphic homology: e. g. white and brown feathers of hen races, chelae of male and female of fiddler crabs

4. Supraspecific: e. g. chelae of fiddler crab, chelae of lobster, feathers of hen and pheasant