Do worms represent monophyletic group ? Explain.

Question

Need help with answering some homework questions don't have the money to pay but I have a few chapters that I need help with. I read the book and still can't find it 

Answer 1

Alexsandria,

 

Earthworm and leech both belong to same phylum: Annelida. However, flatworms and earthworms are different in phylum.

 

Earthworm: Annelida.

 

Flatworm: Platyhelminthes.

 

 

Annelid worms have segmented body whereas Platyhelminthes worms have unsegment body.  

 

Hope this helps.