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Zoology Exam 2
| Question | Answer |
|---|---|
| Sponge body morphology where choanocytes line the canals | syconoid |
| Sponge body morphology where choanocytes line chambers | leuconoid |
| Sponge body morphology where choanocytes the spongocoel | asconoid |
| Name of giant intestinal worm | ascaris |
| Gastropod with gills in front of heart | probranchia |
| Gastropod with gills behind heart | opistobranchia |
| Gastropod with a lung | pulmonata |
| Class of cnidarian with a vellarium | cubozoa |
| Class of cnidarian without medusa phase | anthozoa |
| List three classes of cnidarians | hydrozoa, scyphozoa, cubazoa, anthozoa |
| Which phylum has tissue level organization? | cnidarians |
| Which class of platyheminthes has a centrally located mouth? | turbelleria |
| Which class of platyheminthes lack digestive system? | cestoda (tapeworms) |
| Which class do earthworms belong to? | oligochaetes |
| What is the clitellum used for | reproduction |
| Which cephlopod class has segmented chambered shells? | nautiluses |
| Which cephlopod class has W-shaped pupils? | cuttlefish |
| What germ layer produces the gastrodermis? | endoderm |
| Annelids / segmented worms have paired appendages called: | parapodia |
| Cephalopods are monoecious or dioecious? | dioecious |
| What do you call modified arm (essentially a penis) used for sperm transfer on an octopus? | hectocotyli |
| Metamerism is another word for: | segmentation |
| Nematodes are also known as: | roundworms |
| Cuticle of a nematode is made up of: | collagen |
| What tissue fills spaces between muscles and organs? | parenchyma |
| Which group has ocelli and statocysts? | turbellaria |
| Nematode have a clasping organ that allows the male to hold onto the female called a: | bursa |
| Oligochaetes (earthworms) exhibit indirect or direct development? | direct |
| What are the four classes of platyhelminthes? | tubelleria, trematoda, monogena, cestoda |
| Which class of platyhelminthes is NOT parasitic? | turbelleria |
| Which class of platyhelminthes is an ectoparasite? | monogena |
| Do flatworms reproduce asexually or sexually? | sexually |
| Are flatworms monoecious or dioecious? | monoecious |
| Some flatworms start as ciliated, aquatic larvae known as: | miracidia |
| Which portion of the muscle is contractile? | spindles |
| What do errant polychaetes use for movement? | parapodia |
| What rasping organ do mollusks use for feeding? | radula |
| Which group has hardened, serrated suckers? | squid |
| What structure do nematodes use for excretions and osmoregulation? | renettes |
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