Jamie has $900 in a bank account. She signs up for a one-yea…

Jamie has $900 in a bank account. She signs up for a one-year cell phone contract that automatically takes $50 from her account each month. The contract only lasts for one-year and Jamie does not use this account for anything else.  Use this story problem to help you answer the questions that follow.

Round worms (Phylum: Nematoda) move by essentially thrashing…

Round worms (Phylum: Nematoda) move by essentially thrashing from side to side. Segmented worms (Phylum: Annelida) are capable of much more controlled and intricate movements. What feature of annelids, missing in nematodes, allows for the annelids’ more complex locomotion?