Question 1

It is thought that eukaryotes probably originated about _____ years ago.

Accepted Answer

A)   four billion
B)   three million
C)   four million
D)   three billion
E)   two billionF) B) and D)
G) All of the above

Question 2

According to Miller and other researchers,the most difficult condition to have been met in an "RNA world" was to

Accepted Answer

A)   produce specialized molecules, such as enzymes, lipids, and carbohydrates that supported life functions.
B)   produce chemical reactions that would produce large molecules.
C)   have converted clay particles into organic molecules.
D)   synthesize molecules that would coalesce into the correct shape and structure of cells.
E)   have established molecules that reproduce themselves.F) C) and E)
G) A) and E)

Question 3

It is thought that the first multicellular organisms arose about _____ years ago.

Accepted Answer

A)   500 million
B)   1.2 billion
C)   six billion
D)   3.5 billion
E)   three billionF) C) and D)
G) A) and E)

Question 4

The early report that Stanley Miller had created "Life in a Test Tube" in his prebiotic simulations was correct.

Accepted Answer

A) True 
 B)False

Question 5

Stanley Miller's first prebiotic simulation experiment showed that,under the right conditions,Oparin's ancient atmosphere could allow for the formation of

Accepted Answer

A)   living cells.
B)   liposomes.
C)   amino acids.
D)   plants.
E)   DNA molecules.F) B) and E)
G) None of the above

Question 6

Scientists use mitochondrial DNA to track the migration of humans across the planet.After a group migrates away from their ancestral homeland,any mutations that occur are not mixed with those left in the ancestral population.Based on this,mitochondrial DNA samples taken from ____ would have the fewest unique mutations,representing the original and oldest DNA sequences.

Accepted Answer

A)   Asia
B)   the Americas
C)   Africa
D)   Australia
E)   EuropeF) A) and E)
G) A) and D)

Question 7

The Mesozoic era lasted from about

Accepted Answer

A)   500 million years ago to 250 million years ago.
B)   540 million years ago to 250 million years ago.
C)   65 million years ago to two million years ago.
D)   250 million years ago to 65 million years ago.
E)   one billion years ago to 500 million years ago.F) C) and D)
G) B) and D)

Question 8

The Cenozoic era consists of the _____ periods.

Accepted Answer

A)   Triassic and Jurassic
B)   Permian and Triassic
C)   Jurassic and Cretaceous
D)   Tertiary and Quaternary
E)   Cretaceous and TertiaryF) A) and B)
G) A) and E)

Question 9

The major Canadian geological deposit that contains numerous Cambrian animals is the

Accepted Answer

A)   Gondwana formation.
B)   hydrothermal clays.
C)   Stomatolite formation.
D)   Ordovician coast.
E)   Burgess shale.F) All of the above
G) B) and D)

Question 10

Placental mammals appeared during the _____ period.

Accepted Answer

A)   Permian
B)   Jurassic
C)   Triassic
D)   Cretaceous
E)   TertiaryF) A) and E)
G) D) and E)

Question 11

The plate tectonics that acted on separating Gondwana and Laurasia would have had the environmental (climate) impacts of

Accepted Answer

A)   moving more landmasses and coastlines towards the poles, producing colder climates.
B)   Both answers, in which the landmasses generally transitioned to cooler climates, and more coastal habitats were opened, are correct.
C)   opened more coastal habitats available for adaptive radiation of coastal marine species.
D)   moving more landmasses and coastlines towards the equator, producing warmer climates.
E)   confused migrating organisms and entire populations, as the geographic positions changed due to the tectonic shifts.F) B) and E)
G) A) and B)

Question 12

A time of great adaptive radiation for mammals occurred during the Tertiary period.

Accepted Answer

A) True 
 B)False

Question 13

Place the labeled traits in this list in the interpreted sequence in which they developed through the Paleozoic era. A = lobe-finned fishes and amphibians could survive in water and on land
B = winged insects,resembling today's,thrived in varying land habitats
C = vascular tissues allowed larger plants to diversify land habitats
D = the amniote egg protected and nourished eggs away from water
E = jawless fishes appeared in the oceans

Accepted Answer

A)   B, C, A, D, E
B)   D, A, E, C, B
C)   A, B, E, C, D
D)   E, C, A, B, D
E)   A, B, C, D, EF) C) and D)
G) B) and D)

Question 14

What was one of the predictions tested by Li and ten other scientists,in examination of the genetics of people from African,Asian,and European descent?

Accepted Answer

A)   DNA analysis would show that humans further from central Africa would have many more genes to identify.
B)   Gene pools of people outside of Africa should be less similar to each other, than they are to people within Africa.
C)   The genetic diversity of people within Africa should be greater than people on other continents.
D)   Australopithecus did not interbreed with humans as strongly as Neanderthals.
E)   The genetic diversity in Africa decreased about 100,000 years ago when humans began immigrating.F) A) and E)
G) B) and C)

Question 15

The theory that organisms could arise suddenly from the nonliving component chemicals was called the theory of spontaneous generation.

Accepted Answer

A) True 
 B)False

Question 16

The endosymbiont theory proposes that

Accepted Answer

A)   species of engulfed cells, by another species, survived many generations, and then specialized as mitochondria or chloroplasts.
B)   cell membranes of ancestral cells folded into complex networks, eventually regulated by the DNA to form cell organelles.
C)   liposome lipid bubbles structures responded to progenote molecules, forming functional cell membranes to contain them.
D)   None of the answer choices are correct.
E)   progenotes collectively organized into metabolically sustaining and reproducing structures resembling modern cells.F) C) and E)
G) A) and B)

Question 17

Carl Woese named an ancient aggregate of DNA,RNA,proteins,and lipids a

Accepted Answer

A)   progenote.
B)   liposome.
C)   molecule.
D)   domain.
E)   cell.F) A) and E)
G) B) and D)

Question 18

The "Age of Dinosaurs" lasted about 120 million years and included the _____ periods.

Accepted Answer

A)   Jurassic and Cretaceous
B)   Cambrian and Ordovician
C)   Triassic and Jurassic
D)   Carboniferous and Permian
E)   Cretaceous and TertiaryF) B) and C)
G) All of the above

Question 19

The endoplasmic reticulum,Golgi apparatus,and other membranous organelles of cells might have formed by numerous infoldings of the cell's outer membrane.

Accepted Answer

A) True 
 B)False

Question 20

The swinging from one arm to the other with the body dangling below is

Accepted Answer

A)   "knuckle walking."
B)   bipedalism.
C)   quatrapedalism.
D)   brachiation.
E)   All of the answer choices are correct.F) A) and B)
G) A) and C)

Exam 15: The Origin and History of Life

The "Age of Dinosaurs" lasted about 120 million years and included the _____ periods.

Correct Answer
verified

The plate tectonics that acted on separating Gondwana and Laurasia would have had the environmental (climate) impacts of

Correct Answer
verified

Stanley Miller's first prebiotic simulation experiment showed that,under the right conditions,Oparin's ancient atmosphere could allow for the formation of

Correct Answer
verified

The major Canadian geological deposit that contains numerous Cambrian animals is the

Correct Answer
verified

The endoplasmic reticulum,Golgi apparatus,and other membranous organelles of cells might have formed by numerous infoldings of the cell's outer membrane.

Correct Answer
verified

The Mesozoic era lasted from about

Correct Answer
verified

Correct Answer
verified

What was one of the predictions tested by Li and ten other scientists,in examination of the genetics of people from African,Asian,and European descent?

Correct Answer
verified

The Cenozoic era consists of the _____ periods.

Correct Answer
verified

It is thought that eukaryotes probably originated about _____ years ago.

Correct Answer
verified

A time of great adaptive radiation for mammals occurred during the Tertiary period.

Correct Answer
verified

The swinging from one arm to the other with the body dangling below is

Correct Answer
verified

Placental mammals appeared during the _____ period.

Correct Answer
verified

According to Miller and other researchers,the most difficult condition to have been met in an "RNA world" was to

Correct Answer
verified

It is thought that the first multicellular organisms arose about _____ years ago.

Correct Answer
verified

Correct Answer
verified

The theory that organisms could arise suddenly from the nonliving component chemicals was called the theory of spontaneous generation.

Correct Answer
verified

The early report that Stanley Miller had created "Life in a Test Tube" in his prebiotic simulations was correct.

Correct Answer
verified

The endosymbiont theory proposes that

Correct Answer
verified

Carl Woese named an ancient aggregate of DNA,RNA,proteins,and lipids a

Correct Answer
verified

Exam 15: The Origin and History of Life

The "Age of Dinosaurs" lasted about 120 million years and included the _____ periods.

Correct AnswerverifiedShow Answer

The plate tectonics that acted on separating Gondwana and Laurasia would have had the environmental (climate) impacts of

Correct AnswerverifiedShow Answer

Stanley Miller's first prebiotic simulation experiment showed that,under the right conditions,Oparin's ancient atmosphere could allow for the formation of

Correct AnswerverifiedShow Answer

The major Canadian geological deposit that contains numerous Cambrian animals is the

Correct AnswerverifiedShow Answer

The endoplasmic reticulum,Golgi apparatus,and other membranous organelles of cells might have formed by numerous infoldings of the cell's outer membrane.

Correct AnswerverifiedShow Answer

The Mesozoic era lasted from about

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What was one of the predictions tested by Li and ten other scientists,in examination of the genetics of people from African,Asian,and European descent?

Correct AnswerverifiedShow Answer

The Cenozoic era consists of the _____ periods.

Correct AnswerverifiedShow Answer

It is thought that eukaryotes probably originated about _____ years ago.

Correct AnswerverifiedShow Answer

A time of great adaptive radiation for mammals occurred during the Tertiary period.

Correct AnswerverifiedShow Answer

The swinging from one arm to the other with the body dangling below is

Correct AnswerverifiedShow Answer

Placental mammals appeared during the _____ period.

Correct AnswerverifiedShow Answer

According to Miller and other researchers,the most difficult condition to have been met in an "RNA world" was to

Correct AnswerverifiedShow Answer

It is thought that the first multicellular organisms arose about _____ years ago.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The theory that organisms could arise suddenly from the nonliving component chemicals was called the theory of spontaneous generation.

Correct AnswerverifiedShow Answer

The early report that Stanley Miller had created "Life in a Test Tube" in his prebiotic simulations was correct.

Correct AnswerverifiedShow Answer

The endosymbiont theory proposes that

Correct AnswerverifiedShow Answer

Carl Woese named an ancient aggregate of DNA,RNA,proteins,and lipids a

Correct AnswerverifiedShow Answer

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