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- 1. Multiple ChoiceWhat is true about sponges?They have organsThey have bilateral symmetryThey have a true coelomThey are animals
- 2. Multiple ChoiceMany cnidarians feature 2 body forms, the asexual ____________, and the sexual _____________.blastula, planulamedusa, polypplanula, blastulapolyp, medusa
- 3. Multiple ChoiceThey outer layer of a sponge is made of flattened cells called ______porocytespinacocyteschoanocytesamoebocytes
- 4. Multiple ChoiceWhat type of symmetry may be seen in Cnidarians?bliateralradialbiradialradial and biradial
- 5. Multiple ChoiceMedusa cnidarians are usually ______.monoecioushermaphroditesdioeciousasexual
- 6. Multiple ChoiceHow do medusa move?pulsing their bellcrawling with tentaclescomplex muscular limbsThey are sessile.
- 7. Multiple ChoiceSponges belong in which phylum?CnidariaPoriferaChordataArthropoda
- 8. Multiple ChoiceAnemones belong to which phylum?CnidariaPoriferaEchinodermataPlatyhelminthes
- 9. Multiple ChoiceWhich is an exampleof a freshwater cnidarians?SpongeCoralSea AnemoneHydra
- 10. Multiple ChoiceThe spongin and spicules make up what in sponges?digestive tractskinstomachskeleton
- 11. Multiple ChoiceChoanocytes are also known as _____.epithelial cellsamoeboid cellscollar cellspore cells
- 12. Multiple ChoiceWater enters sponges through the ______.ostia/ostiumoscula/osculum
- 13. Multiple ChoiceWhich cells form tubes through which water enters sponges?choanocytesamoebocytesporocytesspicules
- 14. Multiple ChoiceWhich cells in sponges are responsible for nutrient transport and transporting a sperm to an egg?porocytespinacocyteschoanocytesamoebocytes
- 15. Multiple ChoiceRespiration, circulation, and excretion are all accomplished by _____ in spongesactive transportcirculatory organsdiffusionrespiratory organs
- 16. Multiple ChoiceIn Cnidarians, digestion occurs in the ______.epidermismanubriumGV cavitytentacles
- 17. Multiple ChoiceFertilization, zygote, blastula, planula, polyp, medusa is the correct order for the life cycle of many Cnidarianstruefalse
- 18. Multiple ChoiceWhat is the term for the jelly like layer of Cnidarians?mesohylmesophyllmesogleamesopotamia
- 19. Multiple ChoiceTrue jellies belong to the class _______.StaurozoaAnthozoaCubozoaScyphozoa
- 20. Multiple ChoiceWhich class contains members that can see color?StaurozoaAnthozoaCubozoaScyphozoa
- 21. Multiple ChoiceAnemones and corals belong in ______.StaurozoaAnthozoaCubozoaScyphozoa
- 22. Multiple ChoiceWhich has a medusa phase that dominates its life cycle?HydraAureliaStone CoralsStaurozoans
- 23. Multiple ChoiceWhat is the middle layer of a sponge called?metaphyllcuticlemesohylmesoglea
- 24. Multiple ChoiceA common cnidae is a _______cnidoblastcnidocilnematodenematocyst
- 25. Multiple ChoiceWhich class of Cnidarian has no medusa phase?AnthozoaCubozoaScyphozoaHydrozoa
- 26. Multiple ChoiceIn a sponge, water first travels through the ____.mouthchoanocytesostiaosculum
- 27. Multiple ChoiceWhich cells "do the most" in sponges?porocytespinacocyteschoanocytesamoebocytes
- 28. Multiple ChoiceWhich of these animals leads a sessile lifestyle?Portuguese Man-of-warHydraAureliaGonionemus
- 29. Multiple ChoiceHow many germ (tissue) layers do Cnidarians feature?1234
- 30. Multiple ChoiceWhich structure serves as a trigger in Cnidarians?cnidaecnidocilcnidoblastcnightmares
- 31. Multiple ChoiceOcelli detect changes in ______.lightchemicalsgravitysounds
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