Biology Laboratory Manual, 6/e

Darrell S. Vodopich, Baylor University
Randy Moore, University of Minnesota--Minneapolis

Exercise 35 - Survey of the Animal Kingdom

Choose the one answer that best answers the question.


1	What is the genus of the simple sponge described in the lab manual?
		A)	Grantia
		B)	Euplectella
		C)	Aurelia
		D)	Hydra


2	The "collar" of the choanocytes is made of ___ which trap food particles.
		A)	microvilli
		B)	fibrils
		C)	tentacles
		D)	canals


3	The central chamber of the sponge is the _____.
		A)	gastrovascular cavity
		B)	spongocoel
		C)	mesoglea
		D)	pharynx


4	The gelatinous layer between the inner and outer layers of cnidarians is the ____.
		A)	Grantia
		B)	gastrovascular cavity
		C)	mesoderm
		D)	mesoglea


5	During sexual reproduction in sponges, which of the following develop into gametes?
		A)	gemmules
		B)	spicules
		C)	gametocytes
		D)	amoebocytes


6	Cnidarian tentacles have stinging cells called ___.
		A)	nematocysts
		B)	cnidocytes
		C)	ephyra
		D)	choanocytes


7	The medusa stage is predominant in which cnidarian class?
		A)	Hydrozoa
		B)	Scyphozoa
		C)	Anthozoa
		D)	Porifera


8	Aurelia and Cassiopeia are members of which class?
		A)	Hydrozoa
		B)	Scyphozoa
		C)	Anthozoa
		D)	Porifera


9	Which class has no medusa stage?
		A)	Hydrozoa
		B)	Scyphozoa
		C)	Anthozoa
		D)	Porifera


10	Many corals secrete a ____ skeleton.
		A)	calcium carbonate
		B)	silica
		C)	spicule
		D)	chitin

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