Exam 31: Sponges, Cnidarians, Ctenophores, and Protostomes

Which of the following terms is associated with polychaetes?

What is the purpose of protonephridia in flatworms?

Figure 31-5 Refer to the accompanying figure. What is the function of the structure labeled as 8?

In scyphozoans, the ____ is the dominant body form.

Which of the following is an adaptation that enables cephalopods to escape from their predators?

The phylum name Arthropoda refers to:

The intermediate host for a blood fluke is a:

Figure 31-5 Refer to the accompanying figure. What is the structure labeled as 9?

Hermaphroditic earthworms reproduce sexually by connecting their bodies by their ____. This allows transfer of ____ from one worm to the other.

Figure 31-1 Refer to the accompanying figure. Asexual reproduction is occurring at which point?

Segmentation in arthropods differs from that of annelids because arthropod segments are:

Identify the distinguishing characteristics of phylum Cnidaria. Then outline the classes within this phylum and their major characteristics. Include at least one representative for each class.

Figure 31-1 Refer to the accompanying figure. What is the structure labeled as 9?

What specialized structure do crustaceans use to sense gravity?

Figure 31-6 The cross section in the accompanying figure is representative of the internal structures found in:

Members of phylum Ctenophora are diploblastic but lack cnidocytes. ____________________

Which is a characteristic of all annelids?

The veliger larval form is unique to:

Which statement best describes a lophophore?

What term describes how most sponges can produce both male and female gametes?