1. Brachiopods look similar to most ______ but they are actually unrelated.
[A] corals [B] clams [C] cephalopods [D] snails [E] echinoderms

http://www.palaeos.com/Invertebrates/Lophotrochozoa/Brachiopoda/E0A0E0Brachiopoda.htm

2. The ______ exhibit radial symmetry and have a mouth surrounded by stinging tentacles.
[A] corals [B] clams [C] brachiopods [D] snails [E] crinoids

http://www.palaeos.com/Invertebrates/Cnidaria/Cnidaria.htm

3. Although they are unrelated to corals, bryozoans likewise are _______.
[A] bilateral [B] colonial [C] radial [D] bivalved [E] conical

http://www.palaeos.com/Invertebrates/Lophotrochozoa/Bryozoa.htm
http://en.wikipedia.org/wiki/Corals

4. Which of the following organisms belongs to the Porifera?
[A] trilobite [B] sponge [C] snail [D] sand dollar [E] octopus

http://www.palaeos.com/Invertebrates/Porifera/Porifera.htm

5. Echinoderms, which means "spiny skinned", include the following common sea creatures:
[A] sting rays [B] porcupine fish [C] sand dollars [D] sea urchins [E] C and D

http://www.palaeos.com/Invertebrates/Echinoderms/echinodermata.htm

6. Although they are a group of organisms with great diversity, echinoderms are restricted to _____.
[A] marine environments [B] sandy substrates [C] shallow water [D] B and C

7. Clams, squids, and snails all belong to the ________ invertebrate group.
[A] Brachiopoda [B] Echinoidea [C] Pelecypoda [D] Mollusca [E] Porifera

http://www.palaeos.com/Invertebrates/default.htm#Quick

8. Unlike the more modern scleractinian corals, in rugose corals the _______ form was common.
[A] colonial [B] pelagic [C] solitary [D] branching [E] A and D

http://www.palaeos.com/Invertebrates/Cnidaria/Rugosa.htm

9. Which of these organisms is most accurately described by the phrase "sessile, filter-feeding, benthos"?
[A] trilobite [B] sponge [C] snail [D] sand dollar [E] octopus

[ http://en.wikipedia.org/wiki/Sessile ]
[ http://en.wikipedia.org/wiki/Filter_feeding ]
[ http://en.wikipedia.org/wiki/Benthos ]
(additional Internet searches may be necessary depending on your knowledge of marine invertebrates)

10. According to the Palaeos website, until the rise of carnivorous fish during the Devonian the ____ dominated Paleozoic seas in part due to their superior intelligence.
[A] Brachiopoda [B] Trilobita [C] Coelenterata [D] Bryozoa [E] Cephalopoda

http://www.palaeos.com/Paleozoic/Paleozoic3.html#Life