Question 1

One way mammal limbs differ from reptile limbs is that

Accepted Answer

A) reptiles walk in a more upright posture than mammals do. 
B) mammal limbs are more vertically oriented. 
C) all mammals walk on two legs. 
D) reptiles have totally different limb bones than mammals have. 
A) reptiles walk in a more upright posture than mammals do. 
B) mammal limbs are more vertically oriented. 
C) all mammals walk on two legs. 
D) reptiles have totally different limb bones than mammals have. B

Question 2

Humans became bipedal as a result of switching from life in the trees to life on the ground.

Accepted Answer

A) True 
 B)False  True

Question 3

Evidence that the Cretaceous mass extinction was created by the impact of an asteroid is the existence of a huge ____________________ buried under sediments off the coast of Mexico.

Accepted Answer

crater

Question 4

Which of the following statements about continental drift is true?

Accepted Answer

A) It is the slow movement of the continents over time. 
B) It encourages gene flow. 
C) It no longer occurs. 
D) It has had no effect on speciation. 
A) It is the slow movement of the continents over time. 
B) It encourages gene flow. 
C) It no longer occurs. 
D) It has had no effect on speciation.

Question 5

An asteroid can cause a mass extinction by creating a cloud that blocks out the sun for months or years after impact.

Accepted Answer

A) True 
 B)False

Question 6

In this diagram, the organism in the middle is classified as a ____________________, a group of reptiles that has jaws similar to those of a mammal.

Accepted Answer

The answer of In this diagram, the organism in the...

Question 7

Why is the fossil record incomplete?

Accepted Answer

A) Transitional forms of organisms do not exist because evolution constantly forms new organisms from scratch. 
B) The remains of organisms form fossils by chance and are later discovered by chance. 
C) DNA evidence cannot be obtained from fossils. 
D) Evolutionary trends cannot be determined without complete skeletons, which are rare. 
A) Transitional forms of organisms do not exist because evolution constantly forms new organisms from scratch. 
B) The remains of organisms form fossils by chance and are later discovered by chance. 
C) DNA evidence cannot be obtained from fossils. 
D) Evolutionary trends cannot be determined without complete skeletons, which are rare.

Question 8

All primates are hominids and all hominids are primates.

Accepted Answer

A) True 
 B)False

Question 9

The first members of the genus Homo arose approximately _____ years ago.

Accepted Answer

A) 200,000 
B) 2 million 
C) 1 billion 
D) 3.5 billion 
A) 200,000 
B) 2 million 
C) 1 billion 
D) 3.5 billion

Question 10

The ____________________ hypothesis of human origins suggests that modern humans evolved from H. erectus populations located throughout the world.

Accepted Answer

The answer of The ____________________ hypothesis of human origins suggests...

Question 11

Members of all of Earth's different species (past and present)have been (or will be)converted into some type of fossil after their death.

Accepted Answer

A) True 
 B)False

Question 12

The first vertebrates to colonize land were

Accepted Answer

A) birds. 
B) mammals. 
C) amphibians. 
D) reptiles. 
A) birds. 
B) mammals. 
C) amphibians. 
D) reptiles.

Question 13

Which of the following represents the order in which terrestrial life evolved?

Accepted Answer

A) millipedes, green plants, amphibians, insects, reptiles 
B) millipedes, insects, green plants, reptiles, amphibians 
C) green plants, reptiles, millipedes, insects, amphibians 
D) green plants, millipedes, insects, amphibians, reptiles 
A) millipedes, green plants, amphibians, insects, reptiles 
B) millipedes, insects, green plants, reptiles, amphibians 
C) green plants, reptiles, millipedes, insects, amphibians 
D) green plants, millipedes, insects, amphibians, reptiles

Question 14

Fossils found closer to the surface are usually older than those buried deeper in the Earth's crust.

Accepted Answer

A) True 
 B)False

Question 15

North America and Europe are slowly but surely drifting away from one another.

Accepted Answer

A) True 
 B)False

Question 16

If the Neandertals are not the direct ancestors of humans, is it still possible for humans and Neandertals to be related?

Accepted Answer

A) Yes, because we share a common ancestor. 
B) Yes, but only if humans and Neandertals could have interbred. 
C) No, because the human evolutionary tree is strictly linear and without branches. 
D) No, because this means that Neandertals evolved from an entirely different branch of organisms than humans did. 
A) Yes, because we share a common ancestor. 
B) Yes, but only if humans and Neandertals could have interbred. 
C) No, because the human evolutionary tree is strictly linear and without branches. 
D) No, because this means that Neandertals evolved from an entirely different branch of organisms than humans did.

Question 17

Mass extinctions cause the loss of many species, no matter how well adapted those species were before the extinction. Why might previous adaptations not help a species survive a mass extinction?

Accepted Answer

A) The rapid environmental changes that cause mass extinctions do not leave the organisms time to adapt. 
B) Ongoing continental drift allows more species to interbreed, which lowers the genetic variability available for adaptation. 
C) Adaptive radiations are stronger than adaptations. 
D) Well-adapted organisms will not be affected by mass extinction; these are the groups that will survive. 
A) The rapid environmental changes that cause mass extinctions do not leave the organisms time to adapt. 
B) Ongoing continental drift allows more species to interbreed, which lowers the genetic variability available for adaptation. 
C) Adaptive radiations are stronger than adaptations. 
D) Well-adapted organisms will not be affected by mass extinction; these are the groups that will survive.

Question 18

We know that whales evolved from the same evolutionary ancestor as even-toed hoofed animals like cows and hippopotamuses because

Accepted Answer

A) whales, cows, and hippopotamuses have the same DNA sequence. 
B) whales, cows, and hippopotamuses all exhibit an anklebone with a unique shape. 
C) scientists have been able to induce whale embryos to develop into cows in the laboratory. 
D) remnants of horns are obvious on the skulls of whales. 
A) whales, cows, and hippopotamuses have the same DNA sequence. 
B) whales, cows, and hippopotamuses all exhibit an anklebone with a unique shape. 
C) scientists have been able to induce whale embryos to develop into cows in the laboratory. 
D) remnants of horns are obvious on the skulls of whales.

Question 19

At which labeled point in the graph below are the first eukaryotes thought to have evolved?

Accepted Answer

A) Point A 
B) Point B 
C) Point C 
D) Point D 
A) Point A 
B) Point B 
C) Point C 
D) Point D

Question 20

The Cambrian explosion

Accepted Answer

A) caused a lack of air in Earth's atmosphere. 
B) was caused by an increase in volcanic activity. 
C) was volcanic in nature. 
D) increased the diversity of animal life on Earth. 
A) caused a lack of air in Earth's atmosphere. 
B) was caused by an increase in volcanic activity. 
C) was volcanic in nature. 
D) increased the diversity of animal life on Earth.

Exam 20: The Evolutionary History of Life

One way mammal limbs differ from reptile limbs is that

Humans became bipedal as a result of switching from life in the trees to life on the ground.

Evidence that the Cretaceous mass extinction was created by the impact of an asteroid is the existence of a huge ____________________ buried under sediments off the coast of Mexico.

Which of the following statements about continental drift is true?

An asteroid can cause a mass extinction by creating a cloud that blocks out the sun for months or years after impact.

In this diagram, the organism in the middle is classified as a ____________________, a group of reptiles that has jaws similar to those of a mammal.

Why is the fossil record incomplete?

All primates are hominids and all hominids are primates.

The first members of the genus Homo arose approximately _____ years ago.

The ____________________ hypothesis of human origins suggests that modern humans evolved from H. erectus populations located throughout the world.

Members of all of Earth's different species (past and present)have been (or will be)converted into some type of fossil after their death.

The first vertebrates to colonize land were

Which of the following represents the order in which terrestrial life evolved?

Fossils found closer to the surface are usually older than those buried deeper in the Earth's crust.

North America and Europe are slowly but surely drifting away from one another.

If the Neandertals are not the direct ancestors of humans, is it still possible for humans and Neandertals to be related?

Mass extinctions cause the loss of many species, no matter how well adapted those species were before the extinction. Why might previous adaptations not help a species survive a mass extinction?

We know that whales evolved from the same evolutionary ancestor as even-toed hoofed animals like cows and hippopotamuses because

At which labeled point in the graph below are the first eukaryotes thought to have evolved?

The Cambrian explosion

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons, Muscles, and Movement

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

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