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EESA06 Quiz 5.docx


Department
Environmental Science
Course Code
EESA06H3
Professor
Nick Eyles
Study Guide
Quiz

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EESA06 Quiz 5 Page 1
User Celia Duong
Submitted 3/10/11 10:07 PM
Name Quiz 5: Life on Earth lecture, no chapters in textbook - regarding LISA's guest lecture
Status Completed
Score 27.5 out of 33 points
Time Elapsed 52 minutes, and 10 seconds out of 1 hour
Question 1
Chimps and humans split about ____ million years ago.
Correct Answer: 6
Question 2
Fossils can be used for absolute age dating only.
Correct Answer: False
Question 3
How did scientists determine that Tumay walked upright?
Correct Answer: the way the eyes pointed when the skull fit on the spinal column
Question 4
Life most likely originated around hot spots on the ocean floor.
Correct Answer: true
Question 5
Please match the following terms with their best definition from the list.
Correct Match
Metazoans
B. The first multicellular eukaryotic organisms
Prokaryotes
C. Single celled bacteria lacking a nucleus
Eukaryotes
G. Singular or multicellular bacteria that have a nucleus
Protists
K. Single celled eukaryotic bacteria with thick, protective walls
Achritarchs
H. The fossil remains of protists
Hyperthermophiles
J. Live in very hot waters
Chemosynthesis
A. A mechanism of using chemicals for energy generation
Photosynthesis
F. A mechanism of generating energy from sunlight
Hypersaline
I. Very salty water
Chordates
E. Having a backbone (or at least a notochord) during some part of their lives
Question 6
Early life and the formation of an atmosphere and oceans on Earth may have been prevented by:
Correct Answer: the lack of a magnetic field
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