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Unit #5 Quiz #6

Unit #5 Quiz #6. Grade:. «grade». Aquatic Science. Subject:. «date». Date:. 1. All of the following are true when considering bivalves EXCEPT:. A. Bivalves lack cephalization. B. Adductor muscles are responsible for keeping bivalves tightly shut. C.

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Unit #5 Quiz #6

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  1. Unit #5 Quiz #6 Grade: «grade» Aquatic Science Subject: «date» Date:

  2. 1 All of the following are true when considering bivalves EXCEPT: A Bivalves lack cephalization B Adductor muscles are responsible for keeping bivalves tightly shut C Bivalves use a modified radula to gather food quickly during the few instances that the shell is open D Each individual bivalve is definitively male or female & must undergo sexual reproduction

  3. 2 Echinoderms can reproduce in all of the following ways EXCEPT: A Hermaphroditic reproduction B Asexual reproduction C Sexual reproduction D Regeneration

  4. 3 Cephalopod translates to: A joint foot B stomach foot C two shell D head foot

  5. 4 An herbivorous mollusk would most likely use ________ while feeding. A a beak B a poisonous harpoon (modified radula) C a radula D heavily ciliated gills

  6. 5 A bivalve uses ________ to consume/capture food. A a beak B a poisonous harpoon (modified radula) C a radula D heavily ciliated gills

  7. 6 The operculum plays an important role for gastropods in that: A The operculum is responsible for the majority of gas exchange within gastropods B The operculum seals the shell of a gastropod shut when it retreats into its shell C The operculum helps guide the formation of the columella, but if it is damaged the shell will begin to make smaller and smaller whorls D The operculum helps raise the eyes above the shell so that the gastropod can see almost 360 degrees

  8. 7 Crustaceans can be found in which of the following phyla: A mollusk B echinoderm C arthropod D cnidarian

  9. 8 Which of the following is a cephalopod that has an external shell: A Snail B Nautilus C Squid D Octopus

  10. 9 All of the following are potential defense mechanisms for a cephalopod EXCEPT: A an ink sac that releases melanin B chromatophores that allow an organism to change color & even texture C a modified radula that is covered in neurotoxins D modified tentacles that are lined with suction cups/hooks used to grasp prey

  11. 10 Which of the following is considered the most intelligent of known invertebrates: A cephalopods such as squid and octopus B cetaceans such as dolphins and whales C crustaceans such as crabs and lobsters D bivalves such as clams and oysters

  12. 11 The following organism has which type of symmetry: A radial B asymmetry C bilateral D hexamerism

  13. 12 In the following picture, which represents the anterior protion of the organism: B C D A

  14. 13 Which of the following represents the body whorl: A B C D

  15. 14 Which of the following represents the aperture: A B C D

  16. 15 The following image represents which type of symmetry: A radial B asymmetry C bilateral D hexamerism

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