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Unit #4 Quiz #3 2012-2013

Unit #4 Quiz #3 2012-2013. Grade:. «grade». Aquatic Science. Subject:. «date». Date:. 1. "Porifera" literally means:. A. Plant with Pores. B. Pore Bearer. C. Lumpy Bearer. D. Living Rock. 2. Which of the following graphs represent a stable population:. B. A. C. D. 3.

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Unit #4 Quiz #3 2012-2013

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  1. Unit #4 Quiz #3 2012-2013 Grade: «grade» Aquatic Science Subject: «date» Date:

  2. 1 "Porifera" literally means: A Plant with Pores B Pore Bearer C Lumpy Bearer D Living Rock

  3. 2 Which of the following graphs represent a stable population: B A C D

  4. 3 Which of the following parts of a porifera is responsible for drawing water into the atriuim (central cavity): A oscula (osculum) B amoebocyte C choanocyte D spongin

  5. 4 When a cnidarian releases medusa copies off of the top of the organism, this is best demonstrating A Sexual reproduction B Asexual reproduction C Hermaphroditic reproduction D This is a defense mechanism addressing the difficulty of finding a mate

  6. 5 Porifera best demonstrates which of the following types of symmetry: A Radial B Bilateral C Angular D Translational

  7. 6 Which of the following is FALSE when considering global freshwater: A It covers around 1% of the planet’s surface B It contains more biodiverse species than can be found in saltwater C The concentration of dissolved salts within freshwater is less than 1% D Glaciers, rivers, wells, and aquifers are all examples of freshwater

  8. 7 When a porifera is stressed it will form a ________ in an attempt to keep its offspring alive. A spore B gemmule C capsid D cyst

  9. 8 Porifera are mobile... A when they are searching for food B when they are fleeing from predators C when they metamorphose into adult form D when they are larvae

  10. 9 Cnidarians are polymorphic. Their two different stages are called: A Asexual and hermaphroditic B Asexual and sexual C Polyp and medusa D Polyp and asexual

  11. 10 All of the following are cells found within a Porifera EXCEPT: A ostia B spicule C spongin D choanocyte

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