Fact 1: Caecilians can be found in moist soil near rivers and streams in tropical regions.

Fact 2: Caecilians belong to the order Apoda or Gymnophiona.

Given the two facts above, answer the question "Members of the Apoda order can be found in _." with the following options: 
- rivers in tundra regions.
 - They have webbed feet
 - female sex cells
 - epidermis and dermis
 - rivers in arid regions.
 - streams in arid regions.
 - microorganisms
 - streams in tropical regions


 

        streams in tropical regions 