PASADENA CITY COLLEGE
“Our community’s learning college.” + “Student Success: Our Top Priority.”
Natural Sciences Division
BIOLOGY 16 WEDNESDAY
DR. JOE W. CONNER
FORM IF STUDENT ID ENDS IN: 0-3
NAME: ________________ [Print] QUIZ 2: ___/10 DATE DUE: January 27, 2014 in LEC AT START
PLEASE carefully read and answer only 10 questions of this take home quiz.
1 The hydrothermal vents where discovery in 1870? A) True B) False
2 Which name new field of study link microorganism and the decomposition of organic material
and transforming it back to inorganic material?
A) volcanology B) fossiology C) oceanography D) geomicrobiology
3 To iron-oxidizing microbes could cause large removal or drawdown of ________ gas from the
atmosphere and this could influence ocean chemistry greatly.
A) Nitrogen B) Red Clay C) Carbon Dioxide D) Radioisotopes
4 ____ is one of the most abundant and reactive elements in the environment near the Earth’s
surface. A) Iron B) Iodine C) Helium D) Gold
5 Why did scientist place microbe-free samples on the ocean floor?
A) They use it to detect petroleum. B) They can contain the greatest number of fish.
C) They want to see what would grow on them. D) They are collecting dye samples.
6 Which is name of the WHOI submersible used in the discovery of hydrothermal vents?
A) Arctic Ocean. B) Alvin. C) Atlantis. D) FeMO.
7 The bands of magnetic rock that run parallel to the mid-ocean ridge system which reverse
polarity and are thus called magnetic anomalies are evidence for which of these occurrences?
A) Bacteria lived in the ocean floor millions of years ago B) Granite is denser than basalt
C) Volcanoes form new rock at the ocean ridges. D) The sea floor came from the outer core
8 Generally hydrothermal fluids have temperatures exceeding 410oC. A) True B) False
9 Which of the following sediments are biogenous sediments formed mostly from shells of
microscopic organisms.
A) Siliceous ooze B) Loess deposits C) Manganese nodules D) Red clay
10 An exotic assemblage of macrofauna and microorganisms flourishes at _______ vents.
11 Microbes function in the following ecological role(s): _____
A) producers B) prey C) remineralizers D) all
12 Symbiotic interactions between microbes and vent animals are ________ characterized.
A) well
B) poorly
PASADENA CITY COLLEGE
“Our community’s learning college.” + “Student Success: Our Top Priority.”
Natural Sciences Division
BIOLOGY 16 WEDNESDAY
DR. JOE W. CONNER
FORM IF STUDENT ID ENDS IN: 4-6
NAME: ________________ [Print] QUIZ 2: ___/10 DATE DUE: January 27, 2014 in LEC AT START
PLEASE carefully read and answer only 10 questions of this take home quiz.
1 About what percentage of the Earth's surface is covered by ocean?
A) 50% B) 71% C) 85% D) 25%
2 Which one of the following oceans was the southern EPR recognized on the HMS Challenger
expedition in the 1870’s? A) The Pacific B) The Arctic C) The Atlantic D) The Indian
3 Which is not true of the Pacific?
A) Its area is equal to that of the Indian Ocean.
C) It is geologically the newest ocean.
B) It contains the deepest trench.
D) It contains island arcs.
4 The hydrothermal vents where discovery by _______________________
5 Continental plates are believed to move because of which of these causes?
A) New volcanic rock pushes them away from spreading centers.
B) Cooling lithosphere becomes dense, sinks, and pulls a plate with it which produces "slab
pull".
C) Plates crack along fault lines.
D) The mantle is fluid and carries plates along with it
6 Why are scientists interested in volcanic eruption on hydrothermal and biological processes?
____________________________________
7 Where does new oceanic crust form? ________________________
8 Generally hydrothermal fluids have temperatures exceeding 410oC. A) True B) False
9 Discuss the function of subseafloor borehole observatories (CORKS)
10 An exotic assemblage of macrofauna and microorganisms flourishes at _______ vents.
11 Low-surface chlorophyll-a concentrations in the South Pacific Gyre (SPG) suggest ____
plankton productivity. A) high B) low C) animal D) zoplankton
12 Why are scientists studying interactions between microbes and the crust
PASADENA CITY COLLEGE
“Our community’s learning college.” + “Student Success: Our Top Priority.”
Natural Sciences Division
BIOLOGY 16 WEDNESDAY
DR. JOE W. CONNER
FORM IF STUDENT ID ENDS IN: 7-9
NAME: ________________ [Print] QUIZ 2: ___/10 DATE DUE: January 27, 2014 in LEC AT START
PLEASE carefully read and answer only 10 questions of this take home quiz.
1 About what percentage of the Earth's surface is covered by ocean?
A) 50% B) 71% C) 85% D) 25%
2 Which one of the following terms is/are members of the subseafloor biomes?
A) crustal age B) extent of fluid flow C) thermal state D) all
3 Which is older portion of the planet?
A) Continents.
B) Ocean Crust. C) Mid-ocean ridge peaks
D) Lava.
4 The oceanic ridge flanks is ___________________
5 The ocean crust is large, and the flow of water, heat and solutes between the crust and ocean
rivals those of from riverine sources. A) TRUE B) FALSE
6 Why are scientists interested in volcanic eruption on hydrothermal and biological processes?
____________________________________
7 Ask a question about geomicrobiology. [Omit the answer.] ________________
8 “Biosignatures” in rocks can be reliable if scientists distinguish changes caused by microbial
activity from ________ processes.
A) Abiotic oxidizing. B) Rusting C) A & B D) None.
9 WHOI is located in which state?
A) California
B) Massachusetts
10 The mid-ocean mountain chain ________ the globe.
A) oceanic-oceanic B) continent-continent C) continental-oceanic D) encircles
11 The biologically older rocks were depleted of _____ but full of oxidized iron
A) Fe+2 B) O2 C) Na D) Fe+3
12 Where should you look to find the oldest rocks in the ocean?
A) At hydrothermal vents
B) Near trenches
C) On top of mid-ocean ridges
D) Near volcanoes