Exam 12: Annelida: the Metameric Body Form

Reproductive patterns within the Errantia vary between taxa.Nereis and Glycera,however,do show features common to many errantians.All of the following are common to reproduction by both Nereis and Glycera except one.

__________ increase the surface area for respiratory exchange in some polychaetes.

The __________ are unusual parts of the annelid nervous system responsible for rapid movements such as escape reactions.

The __________ is a dorsal invagination that increases the surface area of the earthworm intestine.

Chloragogen tissue of annelids is similar in function to the vertebrate

In annelids,the __________ is a site of amino acid metabolism.