Question 1

Approximately 245 million years ago,near the end of Paleozoic,Earth's plates were joined in a land mass called

Accepted Answer

A)  Rhodinia. 
B)  Pangaea. 
C)  Laurasia. 
D)  Gondwana. 
E)  Pannotia. 
A)  Rhodinia. 
B)  Pangaea. 
C)  Laurasia. 
D)  Gondwana. 
E)  Pannotia.

Question 2

The geologic process that divided the continents is called

Accepted Answer

A)  continental divide. 
B)  plate tectonics. 
C)  desertification. 
D)  continental realignment. 
E)  continental shift. 
A)  continental divide. 
B)  plate tectonics. 
C)  desertification. 
D)  continental realignment. 
E)  continental shift.

Question 3

Place in order from least to most inclusive.
A. species
B. class
C. kingdom
D. genus
E. family
F. phylum
G. domain
H. order

Accepted Answer

The answer of Place in order from least to most...

Question 4

Which of the following BEST describes the three domains of life and their evolutionary relationships?

Accepted Answer

A)  Prokarya and Archaea both consist of prokaryotic organisms, so they are more closely related to each other than either is to Eukarya. 
B)  Prokarya and Archaea both consist of prokaryotic organisms, but archaea is more closely related to Eukarya than it is to Prokarya. 
C)  Prokarya consists of prokaryotes, while both Archaea and Eukarya consist of eukaryotes. Archaea and Eukarya are more closely related to each other than either is to Prokarya. 
D)  Prokarya consists of prokaryotes, while both Archaea and Eukarya consist of eukaryotes. Prokarya, however, is more closely related to Eukarya than either is to Archaea. 
E)  None of the above. 
A)  Prokarya and Archaea both consist of prokaryotic organisms, so they are more closely related to each other than either is to Eukarya. 
B)  Prokarya and Archaea both consist of prokaryotic organisms, but archaea is more closely related to Eukarya than it is to Prokarya. 
C)  Prokarya consists of prokaryotes, while both Archaea and Eukarya consist of eukaryotes. Archaea and Eukarya are more closely related to each other than either is to Prokarya. 
D)  Prokarya consists of prokaryotes, while both Archaea and Eukarya consist of eukaryotes. Prokarya, however, is more closely related to Eukarya than either is to Archaea. 
E)  None of the above.

Question 5

How could an asteroid striking Earth lead to the death of 60% of the species on the planet?

Accepted Answer

When the asteroid that made the Chicxulu

Question 6

The field of biogeography provides information about

Accepted Answer

A)  the geographic location of a species. 
B)  the distribution or range of a species. 
C)  the adaptations of a species over time. 
D)  the evolutionary history of a species. 
E)  All of the above. 
A)  the geographic location of a species. 
B)  the distribution or range of a species. 
C)  the adaptations of a species over time. 
D)  the evolutionary history of a species. 
E)  All of the above.

Question 7

During which of the following eras did the atmosphere have the least oxygen?

Accepted Answer

A)  Cambrian 
B)  Archean 
C)  Jurassic 
D)  Cretaceous 
E)  Tertiary 
A)  Cambrian 
B)  Archean 
C)  Jurassic 
D)  Cretaceous 
E)  Tertiary

Question 8

Why do scientists look at rocks from other planets to estimate the age of Earth? Why not use rocks from Earth itself?

Accepted Answer

Scientists use rocks from other planets

Question 9

You discover a fossil in an ancient streambed in the southeastern United States of what appears to be an early member of the Camelidae family,which includes camels and llamas.However,the closest living members of this family are the llamas of South America.Should you be concerned that you have misidentified the bone? Why or why not?

Accepted Answer

No,you do not need to be concerned that

Question 10

How did the emergence of photosynthetic organisms alter Earth's early atmosphere? How did this change influence the evolution of life on Earth?

Accepted Answer

Photosynthetic organisms produ

Question 11

How long ago did dinosaurs go extinct?

Accepted Answer

A)  65,000 years ago 
B)  650,000 years ago 
C)  6.5 million years ago 
D)  65 million years ago 
E)  650 million years ago 
A)  65,000 years ago 
B)  650,000 years ago 
C)  6.5 million years ago 
D)  65 million years ago 
E)  650 million years ago

Question 12

Which of the following groups contains the highest number of classified species?

Accepted Answer

A)  fungi 
B)  plants 
C)  protists 
D)  invertebrates 
E)  vertebrates 
A)  fungi 
B)  plants 
C)  protists 
D)  invertebrates 
E)  vertebrates

Question 13

If a radiometric analysis of an isotope and its stable element yielded 50% of each,how many half-lives would have occurred?

Accepted Answer

A)  5 
B)  4 
C)  3 
D)  2 
E)  1 
A)  5 
B)  4 
C)  3 
D)  2 
E)  1

Question 14

Put these in order, starting with the smallest group:  species, family, kingdom, phylum, order, genus, class.

Accepted Answer

species,ge

Question 15

You are a scientist who notices great similarity between the spines of a hedgehog and the spines of a porcupine.When you study their genetics,however,you notice that the set of genes that code for hedgehog spines is a different set of genes than the set that codes for porcupine spines.You decide this must be an example of

Accepted Answer

A)  convergent evolution. 
B)  divergent evolution. 
C)  coalescent evolution. 
D)  unifying evolution. 
E)  symbiotic evolution. 
A)  convergent evolution. 
B)  divergent evolution. 
C)  coalescent evolution. 
D)  unifying evolution. 
E)  symbiotic evolution.

Question 16

Where would the most lead be found in a radiometric analysis of a 5-foot,millions of years old deposit of volcanic ash?

Accepted Answer

A)  at the top 
B)  at the bottom 
C)  in the middle 
D)  in the mid-center 
E)  in the mid-bottom 
A)  at the top 
B)  at the bottom 
C)  in the middle 
D)  in the mid-center 
E)  in the mid-bottom

Question 17

How likely would it be to find a rock with 90% lead-206? Explain.

Accepted Answer

It would not be at all likely.

Question 18

If you don't know how many radioactive isotope atoms were present at the time a rock was formed,how can you tell how many have decayed since that time?

Accepted Answer

You can accomplish this by comparing the

Question 19

Of the taxonomic categories below,which has the greatest number of organisms or most inclusive category?

Accepted Answer

A)  kingdom 
B)  domain 
C)  phylum 
D)  class 
E)  order. 
A)  kingdom 
B)  domain 
C)  phylum 
D)  class 
E)  order.

Question 20

Plate tectonics influences

Accepted Answer

A)  local climate. 
B)  distribution of organisms. 
C)  evolution of species on land. 
D)  evolution of species near land. 
E)  All of the above. 
A)  local climate. 
B)  distribution of organisms. 
C)  evolution of species on land. 
D)  evolution of species near land. 
E)  All of the above.

Exam 17: Life on Earth Qa: Evolution

Approximately 245 million years ago,near the end of Paleozoic,Earth's plates were joined in a land mass called

The geologic process that divided the continents is called

Place in order from least to most inclusive. A. species B. class C. kingdom D. genus E. family F. phylum G. domain H. order

Which of the following BEST describes the three domains of life and their evolutionary relationships?

How could an asteroid striking Earth lead to the death of 60% of the species on the planet?

The field of biogeography provides information about

During which of the following eras did the atmosphere have the least oxygen?

Why do scientists look at rocks from other planets to estimate the age of Earth? Why not use rocks from Earth itself?

How did the emergence of photosynthetic organisms alter Earth's early atmosphere? How did this change influence the evolution of life on Earth?

How long ago did dinosaurs go extinct?

Which of the following groups contains the highest number of classified species?

If a radiometric analysis of an isotope and its stable element yielded 50% of each,how many half-lives would have occurred?

Put these in order, starting with the smallest group: species, family, kingdom, phylum, order, genus, class.

Where would the most lead be found in a radiometric analysis of a 5-foot,millions of years old deposit of volcanic ash?

How likely would it be to find a rock with 90% lead-206? Explain.

If you don't know how many radioactive isotope atoms were present at the time a rock was formed,how can you tell how many have decayed since that time?

Of the taxonomic categories below,which has the greatest number of organisms or most inclusive category?

Plate tectonics influences

The Process of Science Java Report

Chemistry and Molecules of Life Mission to Mars

Cell Function and Structure Wonder Drug

Nutrition,metabolism,enzymes the Peanut Butter Project

Energy Flow and Photosynthesis the Future of Fuel

Dietary Energy and Cellular Respiration Supersize Me

DNA Structure and Replication Biologically Unique

Genes to Proteins Medicine From Milk

Cell Division and Mitosis Natures Pharmacy

Mutations and Cancer Fighting Fate

Single-Gene Inheritance and Meiosis Rock for a Cause

Complex Inheritance Qa: Genetics

Stem Cells and Cell Differentiation Grow Your Own

Natural Selection and Adaptation Bugs That Resist Drugs

A: Nonadaptive Evolution and Speciation Urban Evolution

B: Nonadaptive Evolution and Speciation Urban Evolution

Evidence for Evolution a Fish With Fingers

Prokaryotic Diversity Lost City

A: Eukaryotic Diversity Rain Forest Riches

B: Eukaryotic Diversity Rain Forest Riches

Human Evolution Skin Deep

A: Population Ecology on the Tracks of Wolves and Moose

B: Population Ecology on the Tracks of Wolves and Moose

A: Community Ecology Whats Happening to Honey Bees

B: Community Ecology Whats Happening to Honey Bees

A: Ecosystem Ecology the Heat Is on

B: Ecosystem Ecology the Heat Is on

A: Sustainability the Makings of a Green City

B: Sustainability the Makings of a Green City

A: Overview of Physiology Man Versus Mountain

B: Overview of Physiology Man Versus Mountain

Digestive System Drastic Measures

A: Cardiovascular System Death in Bogalusa

B: Cardiovascular System Death in Bogalusa

Respiratory System Peak Performance

A: Central Nervous System Smoke on the Brain

B: Central Nervous System Smoke on the Brain

Reproductive System Too Many Multiples

Immune System Viral Mysteries

A: Plant Physiology

B: Plant Physiology

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