Question 1

During Charles Darwin's lifetime, the earth was thought to be about

Accepted Answer

A)  15 million years old. 
B)  1 million years old. 
C)  100,000 years old. 
D)  a few thousand years old. 
E)  2,000 years old. 
A)  15 million years old. 
B)  1 million years old. 
C)  100,000 years old. 
D)  a few thousand years old. 
E)  2,000 years old. D

Question 2

The evolutionist Jean Baptiste Lamarck proposed the theory of

Accepted Answer

A)  incomplete dominance. 
B)  creationism. 
C)  inheritance of acquired characteristics. 
D)  competition between individuals. 
E)  natural selection. 
A)  incomplete dominance. 
B)  creationism. 
C)  inheritance of acquired characteristics. 
D)  competition between individuals. 
E)  natural selection. C

Question 3

Reproductive isolation may occur as a result of which of the following?

Accepted Answer

A)  Geographical isolation. 
B)  Soil factors. 
C)  A mutation resulting in a different flowering time. 
D)  Failure of embryos to develop. 
E)  All of these answers are correct. 
A)  Geographical isolation. 
B)  Soil factors. 
C)  A mutation resulting in a different flowering time. 
D)  Failure of embryos to develop. 
E)  All of these answers are correct. E

Question 4

The current distribution of eastern: and western: species of redbud (Cercis sp.)is an example of ________.

Accepted Answer

A)  a pre-zygotic barrier leading to reproductive isolation 
B)  a post-zygotic barrier 
C)  the impact of mutations 
D)  sympatric distribution 
E)  ecological isolation 
A)  a pre-zygotic barrier leading to reproductive isolation 
B)  a post-zygotic barrier 
C)  the impact of mutations 
D)  sympatric distribution 
E)  ecological isolation

Question 5

Individuals producing the greatest number of viable offspring are said to be the most fit.

Accepted Answer

A) True 
 B)False

Question 6

The voyage of H.M.S.Beagle took Charles Darwin to

Accepted Answer

A)  Africa and Madagascar. 
B)  India and Ceylon. 
C)  China and Japan. 
D)  Malaysia and Indonesia. 
E)  Australia and South America. 
A)  Africa and Madagascar. 
B)  India and Ceylon. 
C)  China and Japan. 
D)  Malaysia and Indonesia. 
E)  Australia and South America.

Question 7

Organic evolution

Accepted Answer

A)  is a change in an individual over its lifetime. 
B)  describes the changes that a culture undergoes over time. 
C)  describes the variation observed in a population of individuals during one time frame. 
D)  is a term synonymous with epigenetics. 
E)  is the accumulation of genetic changes in a population of living organisms over many generations. 
A)  is a change in an individual over its lifetime. 
B)  describes the changes that a culture undergoes over time. 
C)  describes the variation observed in a population of individuals during one time frame. 
D)  is a term synonymous with epigenetics. 
E)  is the accumulation of genetic changes in a population of living organisms over many generations.

Question 8

Apomixis requires a special form of meiosis.

Accepted Answer

A) True 
 B)False

Question 9

Analogous features such as spines and fleshy stems of American cacti and African euphorbias are examples of _______________, adaptation to similar environmental conditions.

Accepted Answer

A)  common ancestry 
B)  convergent evolution 
C)  reproductive isolation by polyploidy 
D)  sympatric speciation 
E)  post-zygotic barrier leading to reproductive isolation 
A)  common ancestry 
B)  convergent evolution 
C)  reproductive isolation by polyploidy 
D)  sympatric speciation 
E)  post-zygotic barrier leading to reproductive isolation

Question 10

One key to the origin of new species is geographic isolation.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following did NOT revolutionize thinking about the mechanism of evolution?

Accepted Answer

A)  Realization that diversity of forms in nature required a new blue print (set of genes) for every new species. 
B)  Discovery of genes residing on chromosomes and elucidation of meiosis and mitosis. 
C)  Rediscovery of Mendel's laws of inheritance. 
D)  Darwin's proposal of natural selection as a plausible mechanism for evolution. 
E)  Realization that gene expression is under the control of very similar regulatory genes. 
A)  Realization that diversity of forms in nature required a new blue print (set of genes) for every new species. 
B)  Discovery of genes residing on chromosomes and elucidation of meiosis and mitosis. 
C)  Rediscovery of Mendel's laws of inheritance. 
D)  Darwin's proposal of natural selection as a plausible mechanism for evolution. 
E)  Realization that gene expression is under the control of very similar regulatory genes.

Question 12

In addition to his work on natural selection, Charles Darwin is recognized as the pioneer of scientific naming.

Accepted Answer

A) True 
 B)False

Question 13

In modern theories of evolution, which process does NOT play a role in evolution?

Accepted Answer

A)  Asexual reproduction 
B)  Isolation 
C)  Pollination (in seed plants) 
D)  Mutation 
E)  Formation of zygotes 
A)  Asexual reproduction 
B)  Isolation 
C)  Pollination (in seed plants) 
D)  Mutation 
E)  Formation of zygotes

Question 14

Charles Darwin's voyage aboard H.M.S.Beagle took

Accepted Answer

A)  one year. 
B)  two years. 
C)  three years. 
D)  four years. 
E)  five years. 
A)  one year. 
B)  two years. 
C)  three years. 
D)  four years. 
E)  five years.

Question 15

The majority of mutations are favorable to the adaptation of organisms to their environment.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following can play a role in the development of new species from populations with a common ancestry?

Accepted Answer

A)  Soils. 
B)  Reproductive isolation. 
C)  Mechanical isolation. 
D)  Chemical isolation. 
E)  All of these answers are correct. 
A)  Soils. 
B)  Reproductive isolation. 
C)  Mechanical isolation. 
D)  Chemical isolation. 
E)  All of these answers are correct.

Question 17

Evolutionary biology provides the framework that links the different areas in biological science because _____________.

Accepted Answer

A)  it explains the unity of life 
B)  it explains the diversity of life 
C)  it allows biologists to understand how change occurs at the molecular level 
D)  it allows biologists to explain the origin and function at the ecosystem level 
E)  all of these statements explain the central role of evolution in biological science 
A)  it explains the unity of life 
B)  it explains the diversity of life 
C)  it allows biologists to understand how change occurs at the molecular level 
D)  it allows biologists to explain the origin and function at the ecosystem level 
E)  all of these statements explain the central role of evolution in biological science

Question 18

Permanent change in a given plant population does not occur unless

Accepted Answer

A)  inheritable variation develops. 
B)  the plants are pruned. 
C)  the plants are fertilized. 
D)  hormones are applied to the plants. 
E)  there are major climatic changes. 
A)  inheritable variation develops. 
B)  the plants are pruned. 
C)  the plants are fertilized. 
D)  hormones are applied to the plants. 
E)  there are major climatic changes.

Question 19

One aspect of Darwin's theory was that living organisms are unchanging, appearing today exactly as their ancestors have always appeared.

Accepted Answer

A) True 
 B)False

Question 20

Gene flow occurs when a strong wind blows significant number of seeds from one population into a second population.

Accepted Answer

A) True 
 B)False

Exam 15: Evolution

During Charles Darwin's lifetime, the earth was thought to be about

The evolutionist Jean Baptiste Lamarck proposed the theory of

Reproductive isolation may occur as a result of which of the following?

The current distribution of eastern: and western: species of redbud (Cercis sp.)is an example of ________.

Individuals producing the greatest number of viable offspring are said to be the most fit.

The voyage of H.M.S.Beagle took Charles Darwin to

Organic evolution

Apomixis requires a special form of meiosis.

Analogous features such as spines and fleshy stems of American cacti and African euphorbias are examples of _______________, adaptation to similar environmental conditions.

One key to the origin of new species is geographic isolation.

Which of the following did NOT revolutionize thinking about the mechanism of evolution?

In addition to his work on natural selection, Charles Darwin is recognized as the pioneer of scientific naming.

In modern theories of evolution, which process does NOT play a role in evolution?

Charles Darwin's voyage aboard H.M.S.Beagle took

The majority of mutations are favorable to the adaptation of organisms to their environment.

Which of the following can play a role in the development of new species from populations with a common ancestry?

Evolutionary biology provides the framework that links the different areas in biological science because _____________.

Permanent change in a given plant population does not occur unless

One aspect of Darwin's theory was that living organisms are unchanging, appearing today exactly as their ancestors have always appeared.

Gene flow occurs when a strong wind blows significant number of seeds from one population into a second population.

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Plant Names and Classification

Domain Kingdombacteria, Domain King-Domarchaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants: Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

Filters