__C___ 1. A crab is a member of the phylum a. cnidaria
b. mollusca
c. arthropoda
d. annelida
e. ctenophore ___E__ 2. When asked, you tell a child that a centipede is a a. member of the class insecta
b. part of the largest phylum arthropoda, related to the lobster
c. part of the subphylum cheliceriformes
d. part of the subphylum myriapoda
e. B and D above (told in different short conversations) __D___ 3. When asked, you tell a child that an octopus is a a. member of the class cephlapoda.
b. part of the phylum mollusca, whose ancestors lost the shell (ammonites) altogether.
c. related to squid, nautiluses, and snails which have part or all of their shells still.
d. all of the above (told in different short conversations)
e. A and C above ___A __ 4. ___________ lack a body cavity between the digestive cavity and the outer body wall. a. Acoelomates
b. Coelomates
c. Pseudocoelomates
d. Decoelomates
e. A and C above ___C__ 5. Which of the following combinations of phylum and desription is (are) incorrect? a. Nematoda-roundworms, pseudocoelomate.
b. Echinodermata- bilateral and radial symmetry; coelom from archenteron.
c. Porifera- gastrovascular cavity; coelom present.
d. Cnidaria- radial symmetry; polyp and medusal body forms.
e. Platyhelminthes- flatworms, gastrovascular cavity, acoelomate.
___A__ 6. The cockroach belongs in the __________while the grasshopper belongs in the _________ a. order blattodea……………....order orthoptera of the class insecta
b. order coleoptera……………...order lepidoptera of the class insecta
c. order hymenoptera…………...order coleptera of the class hexapoda
d. order dermaptera …………….order hemiptera of the class myriapoda
e. order blattodea……………….order coleoptera of the class