Question 1

The first organisms on land were

Accepted Answer

A)  plants. 
B)  insects. 
C)  fish. 
D)  amphibians. 
E)  reptiles. 
A)  plants. 
B)  insects. 
C)  fish. 
D)  amphibians. 
E)  reptiles.

Question 2

Miller and Urey demonstrated the formation of organic molecules from simulating a primitive Earth atmosphere containing water vapor and the gases

Accepted Answer

A)  carbon dioxide, hydrogen, methane, and ammonia. 
B)  carbon dioxide, methane, and ammonia. 
C)  hydrogen, methane, and ammonia. 
D)  oxygen, hydrogen, methane, and ammonia. 
E)  oxygen, methane, and ammonia. 
A)  carbon dioxide, hydrogen, methane, and ammonia. 
B)  carbon dioxide, methane, and ammonia. 
C)  hydrogen, methane, and ammonia. 
D)  oxygen, hydrogen, methane, and ammonia. 
E)  oxygen, methane, and ammonia.

Question 3

Where are MOST fossils found?

Accepted Answer

A)  igneous rock 
B)  sedimentary rock 
C)  amber 
D)  in frozen ice packs 
E)  in deserts 
A)  igneous rock 
B)  sedimentary rock 
C)  amber 
D)  in frozen ice packs 
E)  in deserts

Question 4

If fossils are most often found in sedimentary rock but sedimentary rock cannot be aged using radiometric methods,then how can a scientist know how old a fossil is?

Accepted Answer

Scientists can still know how

Question 5

The domain Eukarya includes

Accepted Answer

A)  archaea, fungi, plants, and animals. 
B)  bacteria, fungi, plants, and animals. 
C)  monera, fungi, plants, and animals. 
D)  plants, fungi, animals, and protists. 
E)  protists, monera, plants, fungi, and animals, 
A)  archaea, fungi, plants, and animals. 
B)  bacteria, fungi, plants, and animals. 
C)  monera, fungi, plants, and animals. 
D)  plants, fungi, animals, and protists. 
E)  protists, monera, plants, fungi, and animals,

Question 6

Members of a(n)_______ are MORE closely related to each other than members of a genus.

Accepted Answer

A)  order 
B)  kingdom 
C)  family 
D)  phylum 
E)  species 
A)  order 
B)  kingdom 
C)  family 
D)  phylum 
E)  species

Question 7

Millions of years ago,all the continents were one big landmass called ________.Eventually,however,the continents separated by a geologic process called ________.

Accepted Answer

A)  Pangaea; plate tectonics 
B)  Gaia; plate tectonics 
C)  Pangaea; continental tectonics 
D)  Gaia; continental tectonics 
E)  Pangaea; geotectonics 
A)  Pangaea; plate tectonics 
B)  Gaia; plate tectonics 
C)  Pangaea; continental tectonics 
D)  Gaia; continental tectonics 
E)  Pangaea; geotectonics

Question 8

The idea that the entire solar system and all the planets in it were formed at the same time is called

Accepted Answer

A)  the black hole hypothesis. 
B)  the derivation hypothesis. 
C)  the extraterrestrial hypothesis. 
D)  the nebular hypothesis. 
E)  the solar hypothesis. 
A)  the black hole hypothesis. 
B)  the derivation hypothesis. 
C)  the extraterrestrial hypothesis. 
D)  the nebular hypothesis. 
E)  the solar hypothesis.

Question 9

A radioactive isotope is

Accepted Answer

A)  a pair of identical molecules. 
B)  two molecules with the same tonicity. 
C)  an element with an unstable nucleus that decays to a more stable form. 
D)  an element that generates electrons. 
A)  a pair of identical molecules. 
B)  two molecules with the same tonicity. 
C)  an element with an unstable nucleus that decays to a more stable form. 
D)  an element that generates electrons.

Question 10

Of the groups below,which has the greatest number of classified species?

Accepted Answer

A)  invertebrate animals 
B)  plants 
C)  fungi 
D)  vertebrate animals 
E)  protists 
A)  invertebrate animals 
B)  plants 
C)  fungi 
D)  vertebrate animals 
E)  protists

Question 11

All of the following are TRUE of radioactive isotopes,EXCEPT

Accepted Answer

A)  they are unstable. 
B)  they transform into other elements. 
C)  they release high-energy electrons. 
D)  they are used in radioactive dating. 
E)  the amount of time for a radioactive isotope to decay to half its original quantity is called its half-life. 
A)  they are unstable. 
B)  they transform into other elements. 
C)  they release high-energy electrons. 
D)  they are used in radioactive dating. 
E)  the amount of time for a radioactive isotope to decay to half its original quantity is called its half-life.

Question 12

Which of these is most likely to be used to directly date the age of a fossil?

Accepted Answer

A)  carbon-12 
B)  uranium-238 
C)  lead-206 
D)  carbon-14 
E)  thorium-234 
A)  carbon-12 
B)  uranium-238 
C)  lead-206 
D)  carbon-14 
E)  thorium-234

Question 13

Why are there no polar bears in the Antarctic?

Accepted Answer

Polar bears evolved

Question 14

Which type of evolutionary tree is most useful to scientists,a tree based on similarity of appearance or phylogeny? Explain your answer and be sure to include the definition of phylogeny.

Accepted Answer

An evolutionary tree based on phylogeny

Question 15

Which of the following is the largest level of classification?

Accepted Answer

A)  order 
B)  genus 
C)  family 
D)  phylum 
E)  kingdom 
A)  order 
B)  genus 
C)  family 
D)  phylum 
E)  kingdom

Question 16

Although dinosaurs were restricted to warm climates,many dinosaur fossils have been found in Antarctica.How do you explain this?

Accepted Answer

Antarctica was not always cold,and milli

Question 17

There are ____ domains.

Accepted Answer

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

Question 18

Match up the terms:
A.Hominidae __ genus 
B.Chordata __ kingdom 
C.Eukarya __ class 
D.Sapiens __ order 
E.Mammalia __ domain 
F.Primate __ species 
G.Animalia __ phylum 
H.Homo __ family

Accepted Answer

A.Hominidae __ genus (H)
B.Cho

Question 19

All organisms that produce milk and are covered in fur are

Accepted Answer

A)  carnivores. 
B)  primates. 
C)  invertebrates. 
D)  members of the genus Homo. 
E)  mammals. 
A)  carnivores. 
B)  primates. 
C)  invertebrates. 
D)  members of the genus Homo. 
E)  mammals.

Question 20

Bison and wildebeest are both large grazing animals with similar adaptations to life on relatively arid grasslands.Bison are found only in North America; wildebeest are found only in Africa.Which of the following explains why they share similar adaptations but live on different continents?

Accepted Answer

A)  Their common adaptations are due to the similarities in their environments, but they evolved on separate continents and have always been isolated from one another. 
B)  Their common adaptations are due to the fact that they both evolved in Africa and later spread to North America. Bison outcompeted wildebeest in North America, though, and wildebeest outcompeted bison in Africa, leaving them separated from one another. 
C)  Their common adaptations are due to the fact that they are closely related evolutionarily. They live in different areas because wildebeest are extinct in North America. 
D)  Each species evolved on a separate continent, where the arid grasslands in which they lived forced each species to evolve the same adaptations. 
E)  None of the above. 
A)  Their common adaptations are due to the similarities in their environments, but they evolved on separate continents and have always been isolated from one another. 
B)  Their common adaptations are due to the fact that they both evolved in Africa and later spread to North America. Bison outcompeted wildebeest in North America, though, and wildebeest outcompeted bison in Africa, leaving them separated from one another. 
C)  Their common adaptations are due to the fact that they are closely related evolutionarily. They live in different areas because wildebeest are extinct in North America. 
D)  Each species evolved on a separate continent, where the arid grasslands in which they lived forced each species to evolve the same adaptations. 
E)  None of the above.

Exam 17: Life on Earth Qa: Evolution

The first organisms on land were

Miller and Urey demonstrated the formation of organic molecules from simulating a primitive Earth atmosphere containing water vapor and the gases

Where are MOST fossils found?

If fossils are most often found in sedimentary rock but sedimentary rock cannot be aged using radiometric methods,then how can a scientist know how old a fossil is?

The domain Eukarya includes

Members of a(n)_______ are MORE closely related to each other than members of a genus.

Millions of years ago,all the continents were one big landmass called ________.Eventually,however,the continents separated by a geologic process called ________.

The idea that the entire solar system and all the planets in it were formed at the same time is called

A radioactive isotope is

Of the groups below,which has the greatest number of classified species?

All of the following are TRUE of radioactive isotopes,EXCEPT

Which of these is most likely to be used to directly date the age of a fossil?

Why are there no polar bears in the Antarctic?

Which type of evolutionary tree is most useful to scientists,a tree based on similarity of appearance or phylogeny? Explain your answer and be sure to include the definition of phylogeny.

Which of the following is the largest level of classification?

Although dinosaurs were restricted to warm climates,many dinosaur fossils have been found in Antarctica.How do you explain this?

There are ____ domains.

Match up the terms: A.Hominidae __ genus B.Chordata __ kingdom C.Eukarya __ class D.Sapiens __ order E.Mammalia __ domain F.Primate __ species G.Animalia __ phylum H.Homo __ family

All organisms that produce milk and are covered in fur are

Bison and wildebeest are both large grazing animals with similar adaptations to life on relatively arid grasslands.Bison are found only in North America; wildebeest are found only in Africa.Which of the following explains why they share similar adaptations but live on different continents?

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

Filters

Millions of years ago,all the continents were one big landmass called .Eventually,however,the continents separated by a geologic process called .

Match up the terms: A.Hominidae genus B.Chordata kingdom C.Eukarya class D.Sapiens order E.Mammalia domain F.Primate species G.Animalia phylum H.Homo family