Exam 33: Protostomes

All of the following are either structures or characteristics of members of the Class Bivalvia of the Phylum Mollusca except

What change would result for a land snail that had a mutation interfering with chitin formation?

The rigid chitinous exoskeleton of an arthropod has all of the following functions except it

In their basic body plan,mollusks have a visceral mass covered with a soft epithelium and a muscular ________ that is used in locomotion.

In some arthropods tagmatization has produced a combination of head and thorax known as a

Select the mismatched pair of Phylum Mollusca classes and their examples.

Interoctopus communication is facilitated by

Dibenzoylhydrazines are a category of molecules that have been used as insecticides.They work by blocking ecdysteroid receptors.How does this kill an insect?

According to the modern classification scheme,which animal would be a spider's closest relative?

At a celebratory dinner for a recent publication,a marine biologist ordered the lobster claw appetizer.What part did she order?

Which one of the following incorrectly matches a molluscan structure with its typical function?

Eyes with single lenses that respond to light and darkness are found in many arthropods; these are the

Annelids are characterized by serial ________.

A marine biologist visits your biology class and begins his talk entitled,"Life as a Trochophore." A friend seated next to you asks,"What is a trochophore?" You explain that a trochophore is

Nauplius,a unique kind of larva,is characteristic of

How would an earthworm stretch its body to reach a patch of dirt after crossing a hot sidewalk?

Annelids possess all of the following except

Which one of the following annelid structures or events is not correctly paired with its role in locomotion?

How does a ribbon worm differ from a flatworm?

The passage of an arthropod through stages from egg to adult is