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Polyp: Quiz


Question 1: As regards internal structure, polyps exhibit two well-marked types of organization, each characteristic of one of the two classes, ________ and Anthozoa.

Question 2: In the class ________, the polyps are indeed often very simple, like the common little freshwater species of the genus Hydra.

Question 3: This mode of ________ may be combined with sexual reproduction, or may be the sole method by which the polyp produces offspring, in which case the polyp is entirely without sexual organs.
AnimalLifeCell (biology)Reproduction

Question 4: In the class Anthozoa, comprising the sea anemones and corals, the individual is always a polyp; in the class ________, however, the individual may be either a polyp or a medusa, with most species undergoing a life cycle with both a polyp stage and a medusa stage.

Question 5: Anthozoan polyps, including the ________ and sea anemones, are much more complex due to the development of a tubular stomodaeum leading inward from the mouth and a series of radial partitions called mesenteries.
ScleractiniaCoral reefCoralGorgonian

Question 6: This article incorporates text from the article "Polyp" in the Encyclopædia Britannica, Eleventh Edition, a publication now in the ________.
Intellectual propertyCopyright infringementPublic domainCopyright

Question 7: Thus it is seen that a polyp is an animal of very simple structure, a living fossil that has not changed significantly for about half a billion years (per generally accepted dating of ________ sedimentary rock).
Cambrian explosionGeologic time scaleDevonianCambrian

Question 8: A polyp in zoology is one of two forms found in the phylum ________, the other being the medusa.

Question 9: The name polyp was given to these organisms from their supposed resemblance to an ________ (Fr.
SquidSillaginidaeOctopusWild fisheries

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