Unit #4 Quiz #2, 2013-2014

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Subject:«subject»

Date:«date»

1 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

2 "Porifera" literally means:

A Plant with Pores

B Pore Bearer

C Lumpy Bearer

D Living Rock

3 All of the following are true when considering the coastal zones, EXCEPT:

A Coastal zones are entirely euphotic

B Coastal zones are nutrient rich & the location of the majority of commercial fisheries

C Coastal zones have low primary productivity but very high nutrient concentration

D Estuaries, barrier islands, and coral reefs are all included in coastal zones

4 Which of the following would be true when considering a population without any limiting factors:

A Birth Rate = Death Rate

B The population growth chart would exponentially increase

C The population growth chart would increase with a steady slope

D Birth Rate < Death Rate

5 Which of the following represents the carrying capacity of an environment:

A

BCD

6 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

7 Which of the following parts of a porifera is responsible for drawing water into the atrium (central cavity):

A oscula (osculum)

B amoebocyte

C choanocyte

D spongin

8 Streams, rivers, and creeks are all considered

A Lentic

B Lotic

C Wetland

D Groundwater

9 Which chemical is predominantly responsible for acid rain:

A sulfur dioxide

B carbon dioxide

C chlorine dioxide

D methane gas

10 Porifera best demonstrates which of the following types of symmetry:

A Radial

B Bilateral

C Angular

D Translational

11 While participating in a geological survey, you measure from the high-tide mark to the edge of the continental shelf in an area off of the Florida Keys. You measured:

A The continental shelf

B The intertidal zone

C The benthic zone, where the majority of species exist in the oceans

D The coastal zone

12 You are in a submersible below 100 meters, within the twilight zone. Which of the following colors would you only be able to see if you shined a spotlight/flashlight on something of that color:

A Blue

B Ultra-violet

C Red

D Green

13 Which of the following graphs represent a stable population:

A B

C D

14 Which of the following organisms would be best fit to survive within an intertidal zone:

A An organism that can grow rapidly & defend itself well when exposed to consistent amount of dissolved oxygen

B An organism that can withstand drastic changes in temperature, pH, and pressure

C An organism that has a shell to prevent dehydration & limbs strong enough to move itself without the buoyant force of water

D An organism that has so few cell layers that it only needs to buoyant force of water to stay suspended within the water column

15 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