Question 1

The first terrestrial plants were descendants of .

Accepted Answer

The answer of The first terrestrial plants were descendants of...

Question 2

The hypothesis that certain eukaryotic cell structures may have evolved from a prokaryotic cell being engulfed by a eukaryotic cell is called the

Accepted Answer

A)  prebiotic evolution hypothesis. 
B)  protocell hypothesis. 
C)  living intermediate hypothesis. 
D)  endosymbiont hypothesis. 
E)  spontaneous generation hypothesis. 
A)  prebiotic evolution hypothesis. 
B)  protocell hypothesis. 
C)  living intermediate hypothesis. 
D)  endosymbiont hypothesis. 
E)  spontaneous generation hypothesis.

Question 3

Current research indicates that hominins originally evolved in which continent?

Accepted Answer

A)  Africa 
B)  Australia 
C)  Asia 
D)  Europe 
E)  North America 
A)  Africa 
B)  Australia 
C)  Asia 
D)  Europe 
E)  North America

Question 4

Theories on the atmosphere of early Earth indicate that it lacked
A) CH4.
B) O2.
C) H2.
D) H2O.
E) NH3.

Accepted Answer

Question 5

Flowering plants first rose to prominence in the

Accepted Answer

A)  Paleozoic era. 
B)  Cretaceous period. 
C)  Cambrian period. 
D)  Precambrian era. 
E)  Eocene epoch. 
A)  Paleozoic era. 
B)  Cretaceous period. 
C)  Cambrian period. 
D)  Precambrian era. 
E)  Eocene epoch.

Question 6

The "Southern Beech" tree is found in such diverse places as Australia, South Africa, and South America. People did not transplant it. How did it probably get to these widely separated locations?

Accepted Answer

A)  Glaciers split what was once a continuous, huge population of beeches. 
B)  Seeds were carried by birds. 
C)  The simultaneous creation of the same species occurred in different geographic locations. 
D)  These landmasses were once connected and later drifted apart. 
E)  Seeds were blown by the prevailing winds. 
A)  Glaciers split what was once a continuous, huge population of beeches. 
B)  Seeds were carried by birds. 
C)  The simultaneous creation of the same species occurred in different geographic locations. 
D)  These landmasses were once connected and later drifted apart. 
E)  Seeds were blown by the prevailing winds.

Question 7

Describe how the mitochondrion evolved as an organelle, using the endosymbiont hypothesis.

Accepted Answer

The mitochondrion probably began as an a

Question 8

Humans are in the mammal group known as .

Accepted Answer

The answer of Humans are in the mammal group known...

Question 9

-While exploring a sulfur spring, a scientist finds a new organism. It is single- celled, lacks a cell wall, has a few internal membranes, and appears to have set up a symbiotic relationship with a species of free- living purple sulfur bacteria that are common in the spring. There are no other organisms within it. This new organism would be considered a(n)

Accepted Answer

A)  prokaryote. 
B)  aerobe. 
C)  eukaryote. 
D)  living intermediate. 
A)  prokaryote. 
B)  aerobe. 
C)  eukaryote. 
D)  living intermediate.

Question 10

The first multicellular terrestrial organisms were

Accepted Answer

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

Question 11

Who is credited with proposing that prebiotic chemical conditions could lead to the evolution of complex molecules and, eventually, to living organisms?

Accepted Answer

A)  Alexander Oparin and John Haldane 
B)  Sidney Altman 
C)  Louis Pasteur 
D)  Stanley Miller 
E)  Francisco Redi 
A)  Alexander Oparin and John Haldane 
B)  Sidney Altman 
C)  Louis Pasteur 
D)  Stanley Miller 
E)  Francisco Redi

Question 12

Which group of vertebrates was the first to evolve a waterproof egg, which allowed the group to move away from water, deeper onto dry land?

Accepted Answer

A)  Primates 
B)  Mammals 
C)  Lobefins 
D)  Reptiles 
E)  Birds 
A)  Primates 
B)  Mammals 
C)  Lobefins 
D)  Reptiles 
E)  Birds

Question 13

The scenario of prebiotic evolution leading to the origin of life on Earth is plausible because

Accepted Answer

A)  experiments suggest that all of the chemical components of living cells can be formed quickly from inorganic precursors. 
B)  it has been observed to occur on other planets. 
C)  there was a vast period of time for simple chemicals to evolve into complex molecules found in cells that exist today. 
D)  it has been observed under laboratory conditions. 
E)  it has been observed to occur near thermal vents at the bottom of the ocean. 
A)  experiments suggest that all of the chemical components of living cells can be formed quickly from inorganic precursors. 
B)  it has been observed to occur on other planets. 
C)  there was a vast period of time for simple chemicals to evolve into complex molecules found in cells that exist today. 
D)  it has been observed under laboratory conditions. 
E)  it has been observed to occur near thermal vents at the bottom of the ocean.

Question 14

The first land plants were restricted to moist, marshy environments because of

Accepted Answer

A)  the need for nutrients. 
B)  the need for stem support. 
C)  reproductive cell requirements. 
D)  the lack of a cuticle. 
E)  sensitivity to sunlight. 
A)  the need for nutrients. 
B)  the need for stem support. 
C)  reproductive cell requirements. 
D)  the lack of a cuticle. 
E)  sensitivity to sunlight.

Question 15

Which of these characteristics separates primates from other mammals?

Accepted Answer

A)  Precision grip 
B)  Placental young 
C)  Parental care of young 
D)  Tree- dwelling 
E)  Mammary glands 
A)  Precision grip 
B)  Placental young 
C)  Parental care of young 
D)  Tree- dwelling 
E)  Mammary glands

Question 16

-Based on the graph, if 60% of the original 40K remains in a sample of basalt, what is the approximate age of the rock?

Accepted Answer

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

Question 17

Mitochondria contain their own DNA, separate from that of the rest of the cell.

Accepted Answer

A) True 
 B)False

Question 18

Birds and mammals have a more active lifestyle than reptiles due to

Accepted Answer

A)  internal fertilization. 
B)  insulation over their body surface. 
C)  internal fertilization and a high, constant body temperature. 
D)  a slower metabolism. 
E)  a high, constant body temperature and insulation over their body surface. 
A)  internal fertilization. 
B)  insulation over their body surface. 
C)  internal fertilization and a high, constant body temperature. 
D)  a slower metabolism. 
E)  a high, constant body temperature and insulation over their body surface.

Question 19

Who disproved the "broth- to- microorganisms" hypothesis?

Accepted Answer

A)  Stanley Miller 
B)  Louis Pasteur 
C)  Sidney Altman 
D)  Francisco Redi 
E)  Alexander Oparin 
A)  Stanley Miller 
B)  Louis Pasteur 
C)  Sidney Altman 
D)  Francisco Redi 
E)  Alexander Oparin

Question 20

The first hominin species associated with the use of tools was

Accepted Answer

A)  Homo habilis. 
B)  Australopithecus robustus. 
C)  Australopithecus afarensis. 
D)  Homo sapiens. 
E)  Homo erectus. 
A)  Homo habilis. 
B)  Australopithecus robustus. 
C)  Australopithecus afarensis. 
D)  Homo sapiens. 
E)  Homo erectus.

Exam 18: The History of Life

The first terrestrial plants were descendants of .

The hypothesis that certain eukaryotic cell structures may have evolved from a prokaryotic cell being engulfed by a eukaryotic cell is called the

Current research indicates that hominins originally evolved in which continent?

Theories on the atmosphere of early Earth indicate that it lacked A) CH4. B) O2. C) H2. D) H2O. E) NH3.

Flowering plants first rose to prominence in the

The "Southern Beech" tree is found in such diverse places as Australia, South Africa, and South America. People did not transplant it. How did it probably get to these widely separated locations?

Describe how the mitochondrion evolved as an organelle, using the endosymbiont hypothesis.

Humans are in the mammal group known as .

The first multicellular terrestrial organisms were

Who is credited with proposing that prebiotic chemical conditions could lead to the evolution of complex molecules and, eventually, to living organisms?

Which group of vertebrates was the first to evolve a waterproof egg, which allowed the group to move away from water, deeper onto dry land?

The scenario of prebiotic evolution leading to the origin of life on Earth is plausible because

The first land plants were restricted to moist, marshy environments because of

Which of these characteristics separates primates from other mammals?

-Based on the graph, if 60% of the original 40K remains in a sample of basalt, what is the approximate age of the rock?

Mitochondria contain their own DNA, separate from that of the rest of the cell.

Birds and mammals have a more active lifestyle than reptiles due to

Who disproved the "broth- to- microorganisms" hypothesis?

The first hominin species associated with the use of tools was

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

Filters

Theories on the atmosphere of early Earth indicate that it lacked A) CH₄. B) O₂. C) H₂. D) H₂O. E) NH₃.