Question 1

Uranium-238 after many decay events becomes this stable element.

Accepted Answer

A)  radon-222 
B)  uranium-234 
C)  thorium-234 
D)  lead-206 
E)  polonium-210 
A)  radon-222 
B)  uranium-234 
C)  thorium-234 
D)  lead-206 
E)  polonium-210

Question 2

What is punctuated equilibrium?

Accepted Answer

Punctuated equilibrium is the

Question 3

Put the following in order of their evolution.

Accepted Answer

A)  invertebrates→algae→amphibians→birds→reptiles→mammals 
B)  invertebrates→algae→vertebrates→reptiles→amphibians→mammals 
C)  algae→invertebrates→vertebrates→reptiles→amphibians→mammals 
D)  algae→vertebrates→ amphibians→reptiles→mammals→invertebrates 
E)  algae→invertebrates→vertebrates→amphibians→reptiles→mammals 
A)  invertebrates→algae→amphibians→birds→reptiles→mammals 
B)  invertebrates→algae→vertebrates→reptiles→amphibians→mammals 
C)  algae→invertebrates→vertebrates→reptiles→amphibians→mammals 
D)  algae→vertebrates→ amphibians→reptiles→mammals→invertebrates 
E)  algae→invertebrates→vertebrates→amphibians→reptiles→mammals

Question 4

Based on the information in the partial geological timeline,which of the following sequences correctly identifies the order in which organisms arose on Earth?

Accepted Answer

A)  vertebrate ancestors, seedless plants on land, amphibians, reptiles 
B)  vertebrates, insects, seedless plants, reptiles 
C)  vertebrate ancestors, insects, fungi, reptiles 
D)  fungi, primitive insects, reptiles, amphibians 
E)  None of the above. 
A)  vertebrate ancestors, seedless plants on land, amphibians, reptiles 
B)  vertebrates, insects, seedless plants, reptiles 
C)  vertebrate ancestors, insects, fungi, reptiles 
D)  fungi, primitive insects, reptiles, amphibians 
E)  None of the above.

Question 5

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

Accepted Answer

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

Question 6

Why does adaptive radiation occur after a mass extinction?

Accepted Answer

All of the niches an

Question 7

Is a bird more closely related to a crocodile or an anole lizard? Explain.

Accepted Answer

The bird and the cro

Question 8

What percentage of lead-206 would a 9-billion-year-old rock have?

Accepted Answer

The answer of What percentage of lead-206 would a 9-billion-year-old...

Question 9

The half-life of potassium-40 is 1.3 billion years.If a rock starts with 12,000 atoms of potassium-40,how many atoms will remain in 650 million years?

Accepted Answer

A)  1,000 
B)  3,000 
C)  4,000 
D)  6,000 
E)  9,000 
A)  1,000 
B)  3,000 
C)  4,000 
D)  6,000 
E)  9,000

Question 10

What is a mass extinction?

Accepted Answer

A mass extinction is

Question 11

Humans and other mammals belong to which of the following domains?

Accepted Answer

A)  Archaea 
B)  Bacteria 
C)  Eukarya 
D)  Monera 
E)  Protista 
A)  Archaea 
B)  Bacteria 
C)  Eukarya 
D)  Monera 
E)  Protista

Question 12

Domain Eukarya contains four major taxonomic groups.List at least three of them.

Accepted Answer

protists
p

Question 13

The half-life of an isotope is 5,000 years.With a starting material of 1g of an isotope,after 5,000 years,how much would remain?

Accepted Answer

A)  2 g 
B)  0.5 g 
C)  1 g 
D)  2.5 g 
E)  0.25 g 
A)  2 g 
B)  0.5 g 
C)  1 g 
D)  2.5 g 
E)  0.25 g

Question 14

Uranium-238 decays into thorium-234 and finally into

Accepted Answer

A)  thorium-232. 
B)  lead-232. 
C)  radon-222. 
D)  radon-224. 
E)  lead-206. 
A)  thorium-232. 
B)  lead-232. 
C)  radon-222. 
D)  radon-224. 
E)  lead-206.

Question 15

How old is Earth?

Accepted Answer

A)  1-2 million years old 
B)  3-4 million years old 
C)  1-2 billion years old 
D)  4-5 billion years old 
E)  1-2 trillion years old 
A)  1-2 million years old 
B)  3-4 million years old 
C)  1-2 billion years old 
D)  4-5 billion years old 
E)  1-2 trillion years old

Question 16

The total number of classified species known to science is roughly

Accepted Answer

A)  500,000. 
B)  1 million. 
C)  2 million. 
D)  5 million. 
E)  10 million. 
A)  500,000. 
B)  1 million. 
C)  2 million. 
D)  5 million. 
E)  10 million.

Question 17

Which element has the longest half-life?

Accepted Answer

A)  rubidium-87 
B)  lead-214 
C)  uranium-238 
D)  carbon-14 
E)  potassium-40 
A)  rubidium-87 
B)  lead-214 
C)  uranium-238 
D)  carbon-14 
E)  potassium-40

Question 18

The first diverse animal world appeared during the

Accepted Answer

A)  Cambrian explosion. 
B)  Ordovician explosion. 
C)  Silurian explosion. 
D)  Devonian explosion. 
E)  Carboniferous explosion. 
A)  Cambrian explosion. 
B)  Ordovician explosion. 
C)  Silurian explosion. 
D)  Devonian explosion. 
E)  Carboniferous explosion.

Question 19

The half-life of carbon-14 is _____ years.

Accepted Answer

A)  12 
B)  57,000 
C)  5730 
D)  1 billion 
E)  4.5 billion 
A)  12 
B)  57,000 
C)  5730 
D)  1 billion 
E)  4.5 billion

Question 20

Half-life is an estimate of

Accepted Answer

A)  half of the age of a rock's life. 
B)  the age of a rock's life that is at least 50% likely to be correct. 
C)  the former size of a rock. 
D)  the time it takes for half of a rock's isotope atoms to decay. 
E)  the weight of the isotope in a rock. 
A)  half of the age of a rock's life. 
B)  the age of a rock's life that is at least 50% likely to be correct. 
C)  the former size of a rock. 
D)  the time it takes for half of a rock's isotope atoms to decay. 
E)  the weight of the isotope in a rock.

Exam 17: Life on Earth Qa: Evolution

Uranium-238 after many decay events becomes this stable element.

What is punctuated equilibrium?

Put the following in order of their evolution.

Based on the information in the partial geological timeline,which of the following sequences correctly identifies the order in which organisms arose on Earth?

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

Why does adaptive radiation occur after a mass extinction?

Is a bird more closely related to a crocodile or an anole lizard? Explain.

What percentage of lead-206 would a 9-billion-year-old rock have?

The half-life of potassium-40 is 1.3 billion years.If a rock starts with 12,000 atoms of potassium-40,how many atoms will remain in 650 million years?

What is a mass extinction?

Humans and other mammals belong to which of the following domains?

Domain Eukarya contains four major taxonomic groups.List at least three of them.

The half-life of an isotope is 5,000 years.With a starting material of 1g of an isotope,after 5,000 years,how much would remain?

Uranium-238 decays into thorium-234 and finally into

How old is Earth?

The total number of classified species known to science is roughly

Which element has the longest half-life?

The first diverse animal world appeared during the

The half-life of carbon-14 is _____ years.

Half-life is an estimate of

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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