sinus open circulatory system gills heart radula cilia nephridia anus intestine a. organ that turns undi- gested food into feces b. organ that pumps blood through the open circu- latory system c. organs that produce urine d. group of organs in which blood travels through blood vessels into openings in the tis- sues that lead to the gills e. organ where gas ex- change takes place f. structures that trans- port sensory stimuli through the body nerve ring and nerve cords g. opening in the tissues where blood passes through to the gills h. opening through which solid waste passes out of the body i. hairlike structures on the gills that move food into the mouth j. structure made of skin covered with tiny teeth, used to pull food into the mouth

What would be the best anatomical feature to look for to distinguish a gastropod from a chiton? (presence of muscular foot/ presence of a radula/ production of eggs/ number of shell plates)?

All molluscs, but the bivalves, are bilaterally symmetrical (True/False)?

Zoology Name the designated structure & class of the animal.

Brachiopods superficially resemble bivalve molluscs, such as clams. How would you explain the differences in symmetry and internal structure to a layperson?

Give eight characteristics of sponges

What is the clitellum of earthtworms and where it is located?

What are the functional significance of differences in shell morphology among gastropods and bivalves?

What makes sponges (poriferans) different from other animals?

A) Give the shell number (upper right corner of slide) B) Give the scientific name of the shell C) Give the common name of each shell and find out what eats and what feeding method it uses to obtain its food (filter feeder, active predator, active herbivore, etc).