Question 1

The first known multicellular organisms evolved approximately how many years ago?

Accepted Answer

A)   3.5 BYA
B)   2.1 BYA
C)   1.4 BYA
D)   100 MYAE) None of the above
F) A) and D)

Question 2

The formation of simple organic monomers, such as sugars, amino acids, and nucleotide bases, from inorganic molecules is

Accepted Answer

A)   biosynthesis.
B)   genetically modified photosynthesis.
C)   abiotic synthesis.
D)   chemoautotrophic activity.E) A) and B)
F) A) and C)

Question 3

Africa, Asia, South America, and Antarctica share some patterns of primitive (fossil)  plants and early reptiles, but do not have similar mammal populations. These findings

Accepted Answer

A)   cast serious doubts upon the theory of continental drift and fused land masses.
B)   are an unsolved puzzle probably due to the random nature of biological evolution.
C)   suggest that a pattern of land bridges existed at different times in geological history.
D)   suggest that the earlier plants and reptiles evolved while continents were joined, but mammals radiated into diverse groups after separation.
E)   suggest that the mammals evolved earlier while continents were joined, but plants and reptiles radiated into diverse groups after separation.F) D) and E)
G) None of the above

Question 4

When and where did the first multicellular protists evolve?

Accepted Answer

A)   Africa / 2.3 BYA
B)   Canada / 1.4 BYA
C)   Middle East / 4.6 BYA
D)   Asia / 3.2 BYAE) All of the above
F) B) and C)

Question 5

Dinosaurs were the dominant group during the Mesozoic Era and many scientists believe that they were

Accepted Answer

A)   endothermic, or warm blooded.
B)   ectothermic, or cold-blooded.
C)   exergonic, or energy releasing.
D)   both endothermic and ectothermic. Some scientists believe that certain dinosaurs were endothermic while others believe that certain dinosaurs were ectothermic.E) A) and C)
F) C) and D)

Question 6

It is likely that the protocell was

Accepted Answer

A)   heterotrophic.
B)   chemoautotrophic.
C)   photoautotrophic.
D)   a decomposer.
E)   either heterotrophic or chemoautotrophic.F) C) and D)
G) A) and D)

Question 7

Which of the following forms of energy was NOT involved in the production of large organic molecules in the primitive reducing atmosphere?

Accepted Answer

A)   radioactivity
B)   electrical energy
C)   heat
D)   radiation from the sun
E)   soundF) A) and B)
G) None of the above

Question 8

Some viruses never use DNA to carry out protein synthesis and have only RNA as their genetic material. This would lend evidence to which theory?

Accepted Answer

A)   RNA-first hypothesis
B)   protein-first hypothesis
C)   simultaneous evolution of RNA and proteins
D)   endosymbiotic theory of eukaryote evolutionE) B) and C)
F) A) and B)

Question 9

The scientific study of fossils and what they reveal about prehistoric life in relation to ancient climates and environments is

Accepted Answer

A)   biogeography.
B)   comparative molecular biology.
C)   paleontology.
D)   geology.E) B) and C)
F) A) and D)

Question 10

The first eukaryotic cells probably arose about _____ billion years ago.

Accepted Answer

A)   2.2
B)   2.5
C)   3.5
D)   4.5E) A) and B)
F) All of the above

Question 11

The first person who proposed that small organic molecules could have arisen by chemical evolution was

Accepted Answer

A)   Stanley Miller.
B)   Graham Cairns-Smith.
C)   Thomas Cech.
D)   Aleksander Oparin.
E)   Sidney Fox.F) A) and C)
G) A) and E)

Question 12

The distribution of mammalian fossils on Australia, South America and Africa help support continental drift.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following major divisions of geologic time is mismatched with the organisms that flourished during that time period?

Accepted Answer

A)   Carboniferous Period-Age of Amphibians
B)   Mesozoic Era-Age of Reptiles
C)   Cambrian Period-Age of Fish
D)   Cenozoic Era-Age of Homo sapiensE) A) and D)
F) B) and C)

Question 14

Which of the following mass extinction is correctly matched with the date of the extinction?

Accepted Answer

A)   Silurian / 445.2 mya
B)   Devonian / 443.7 mya
C)   Cretaceous / 65.5 mya
D)   Triassic / 251 myaE) B) and D)
F) A) and B)

Question 15

The first cells gave rise to

Accepted Answer

A)   bacteria and archaea.
B)   archaea and protists.
C)   bacteria and fungi.
D)   eukaryotes and bacteria.E) A) and B)
F) A) and C)

Question 16

Which piece of evidence supports the hypothesis of continental drift?

Accepted Answer

A)   Alfred Wegener believed that the continents formed a supercontinent called Pangea.
B)   Charles Darwin believed that the continents formed a supercontinent called Pangea.
C)   Charles Lyell believed that the continents split into two smaller continents called Gondwana and Laurasia.
D)   Alfred Wallace believed that the distribution of seed fern fossils supported continental drift.E) A) and B)
F) B) and D)

Question 17

Fossils of prokaryotic cells are dated as far back as approximately _____ billion years ago.

Accepted Answer

A)   1.5
B)   2.8
C)   3.8
D)   4.8E) B) and C)
F) A) and C)

Exam 18: Origin and History of Life

The formation of simple organic monomers, such as sugars, amino acids, and nucleotide bases, from inorganic molecules is

Correct Answer
verified

It is likely that the protocell was

Correct Answer
verified

Which of the following mass extinction is correctly matched with the date of the extinction?

Correct Answer
verified

The first person who proposed that small organic molecules could have arisen by chemical evolution was

Correct Answer
verified

Africa, Asia, South America, and Antarctica share some patterns of primitive (fossil) plants and early reptiles, but do not have similar mammal populations. These findings

Correct Answer
verified

Which of the following forms of energy was NOT involved in the production of large organic molecules in the primitive reducing atmosphere?

Correct Answer
verified

The first eukaryotic cells probably arose about _____ billion years ago.

Correct Answer
verified

The scientific study of fossils and what they reveal about prehistoric life in relation to ancient climates and environments is

Correct Answer
verified

Dinosaurs were the dominant group during the Mesozoic Era and many scientists believe that they were

Correct Answer
verified

Fossils of prokaryotic cells are dated as far back as approximately _____ billion years ago.

Correct Answer
verified

Which piece of evidence supports the hypothesis of continental drift?

Correct Answer
verified

Which of the following major divisions of geologic time is mismatched with the organisms that flourished during that time period?

Correct Answer
verified

The first cells gave rise to

Correct Answer
verified

Some viruses never use DNA to carry out protein synthesis and have only RNA as their genetic material. This would lend evidence to which theory?

Correct Answer
verified

When and where did the first multicellular protists evolve?

Correct Answer
verified

The first known multicellular organisms evolved approximately how many years ago?

Correct Answer
verified

The distribution of mammalian fossils on Australia, South America and Africa help support continental drift.

Correct Answer
verified

Exam 18: Origin and History of Life

The formation of simple organic monomers, such as sugars, amino acids, and nucleotide bases, from inorganic molecules is

Correct AnswerverifiedShow Answer

It is likely that the protocell was

Correct AnswerverifiedShow Answer

Which of the following mass extinction is correctly matched with the date of the extinction?

Correct AnswerverifiedShow Answer

The first person who proposed that small organic molecules could have arisen by chemical evolution was

Correct AnswerverifiedShow Answer

Africa, Asia, South America, and Antarctica share some patterns of primitive (fossil) plants and early reptiles, but do not have similar mammal populations. These findings

Correct AnswerverifiedShow Answer

Which of the following forms of energy was NOT involved in the production of large organic molecules in the primitive reducing atmosphere?

Correct AnswerverifiedShow Answer

The first eukaryotic cells probably arose about _____ billion years ago.

Correct AnswerverifiedShow Answer

The scientific study of fossils and what they reveal about prehistoric life in relation to ancient climates and environments is

Correct AnswerverifiedShow Answer

Dinosaurs were the dominant group during the Mesozoic Era and many scientists believe that they were

Correct AnswerverifiedShow Answer

Fossils of prokaryotic cells are dated as far back as approximately _____ billion years ago.

Correct AnswerverifiedShow Answer

Which piece of evidence supports the hypothesis of continental drift?

Correct AnswerverifiedShow Answer

Which of the following major divisions of geologic time is mismatched with the organisms that flourished during that time period?

Correct AnswerverifiedShow Answer

The first cells gave rise to

Correct AnswerverifiedShow Answer

Some viruses never use DNA to carry out protein synthesis and have only RNA as their genetic material. This would lend evidence to which theory?

Correct AnswerverifiedShow Answer

When and where did the first multicellular protists evolve?

Correct AnswerverifiedShow Answer

The first known multicellular organisms evolved approximately how many years ago?

Correct AnswerverifiedShow Answer

The distribution of mammalian fossils on Australia, South America and Africa help support continental drift.

Correct AnswerverifiedShow Answer

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