Question 1

It is advantageous to develop perennial versions of important annual grain crops because perennial crops:

Accepted Answer

A) have longer growing seasons. 
B) have deeper root systems. 
C) more effectively maintain topsoil. 
D) more efficiently use water and nutrients. 
E) store less carbon in the soil. 
A) have longer growing seasons. 
B) have deeper root systems. 
C) more effectively maintain topsoil. 
D) more efficiently use water and nutrients. 
E) store less carbon in the soil.

Question 2

Homo sapiens appeared in Africa about ___________ years ago.

Accepted Answer

A) 5000 
B) 500,000 
C) 1.4 million 
D) 2.4 million 
E) 140 million 
A) 5000 
B) 500,000 
C) 1.4 million 
D) 2.4 million 
E) 140 million

Question 3

Which of the following crops was NOT initially cultivated in Africa?

Accepted Answer

A) sorghum 
B) okra 
C) yams 
D) rice 
E) cotton 
A) sorghum 
B) okra 
C) yams 
D) rice 
E) cotton

Question 4

The domestication of squash occurred first in North America and later in South America.

Accepted Answer

A) True 
 B)False

Question 5

Manioc was first domesticated in the tropics of Asia.

Accepted Answer

A) True 
 B)False

Question 6

In contrast to spices, many herbs originated in Europe and the Mediterranean region.

Accepted Answer

A) True 
 B)False

Question 7

Plantains are a ______ variety of ______ first cultivated in tropical Asia.

Accepted Answer

A) starchy; taro 
B) sweet; taro 
C) starchy; banana 
D) sweet; banana 
E) starchy; sorghum 
A) starchy; taro 
B) sweet; taro 
C) starchy; banana 
D) sweet; banana 
E) starchy; sorghum

Question 8

The Irish potato famine of 1846-1847 and the U.S.epidemic of southern leaf blight of maize in 1970 resulted from:

Accepted Answer

A) increases in the mutation rate. 
B) mistakes in genetic engineering. 
C) the overuse of chemical sprays. 
D) widespread cultivation of genetically uniform varieties that were susceptible to disease. 
E) an unusual abundance of numerous types of plant pathogens. 
A) increases in the mutation rate. 
B) mistakes in genetic engineering. 
C) the overuse of chemical sprays. 
D) widespread cultivation of genetically uniform varieties that were susceptible to disease. 
E) an unusual abundance of numerous types of plant pathogens.

Question 9

The most promising approach to solving the world's food problems is:

Accepted Answer

A) increasing the use of pesticides. 
B) increasing the use of fertilizers. 
C) increasing the availability of water. 
D) cultivating more land. 
E) improving the existing crops. 
A) increasing the use of pesticides. 
B) increasing the use of fertilizers. 
C) increasing the availability of water. 
D) cultivating more land. 
E) improving the existing crops.

Question 10

Perennial versions of important grain crops have greater root mass than the annual versions.

Accepted Answer

A) True 
 B)False

Question 11

It is estimated that in 2008, one in ______ people on Earth will suffer malnutrition.

Accepted Answer

A) 2 
B) 5 
C) 7 
D) 10 
E) 15 
A) 2 
B) 5 
C) 7 
D) 10 
E) 15

Question 12

______ produces an alternative source of synthetic liquid wax.

Accepted Answer

A) Dioscorea 
B) Elaeis 
C) Jojoba 
D) Spinacia 
E) Solanum 
A) Dioscorea 
B) Elaeis 
C) Jojoba 
D) Spinacia 
E) Solanum

Question 13

The ______ was first cultivated in Central and South America then carried to New Zealand, Hawaii, and other Pacific islands.

Accepted Answer

A) sweet potato 
B) white potato 
C) sunflower 
D) yam 
E) pineapple 
A) sweet potato 
B) white potato 
C) sunflower 
D) yam 
E) pineapple

Question 14

It is estimated that by 2050, the world will need 70 to 100 percent more food than is now available.

Accepted Answer

A) True 
 B)False

Question 15

At the beginning of the twenty-first century there were more than 6 billion people on Earth.

Accepted Answer

A) True 
 B)False

Question 16

The great majority of the world's food supply is based on ______ kinds of crop plants.

Accepted Answer

A) 2 
B) 6 
C) 8 
D) 14 
E) 20 
A) 2 
B) 6 
C) 8 
D) 14 
E) 20

Question 17

The domestication of plants in the Fertile Crescent began about ______ years ago.

Accepted Answer

A) 1100 
B) 13,000 
C) 22,000 
D) 55,000 
E) 110,000 
A) 1100 
B) 13,000 
C) 22,000 
D) 55,000 
E) 110,000

Question 18

______ is a particularly salt-tolerant plant that may prove useful in producing salt-tolerant hybrids.

Accepted Answer

A) Simmondsia chinensis 
B) Parthenium argentatum 
C) Amaranthus 
D) Solanum lycopersicum 
E) Solanum cheesmanii 
A) Simmondsia chinensis 
B) Parthenium argentatum 
C) Amaranthus 
D) Solanum lycopersicum 
E) Solanum cheesmanii

Question 19

Spices are usually derived from parts of a plant other than the leaves.

Accepted Answer

A) True 
 B)False

Question 20

The distinctive agriculture that developed in the south central Andes of South America was based on:

Accepted Answer

A) corn and beans. 
B) wheat and barley. 
C) millet and soybeans. 
D) potatoes, quinoa, and lupines. 
E) rice, soybeans, and yams. 
A) corn and beans. 
B) wheat and barley. 
C) millet and soybeans. 
D) potatoes, quinoa, and lupines. 
E) rice, soybeans, and yams.

Exam 21: Plants and People

It is advantageous to develop perennial versions of important annual grain crops because perennial crops:

Homo sapiens appeared in Africa about ___________ years ago.

Which of the following crops was NOT initially cultivated in Africa?

The domestication of squash occurred first in North America and later in South America.

Manioc was first domesticated in the tropics of Asia.

In contrast to spices, many herbs originated in Europe and the Mediterranean region.

Plantains are a ______ variety of ______ first cultivated in tropical Asia.

The Irish potato famine of 1846-1847 and the U.S.epidemic of southern leaf blight of maize in 1970 resulted from:

The most promising approach to solving the world's food problems is:

Perennial versions of important grain crops have greater root mass than the annual versions.

It is estimated that in 2008, one in ______ people on Earth will suffer malnutrition.

______ produces an alternative source of synthetic liquid wax.

The ______ was first cultivated in Central and South America then carried to New Zealand, Hawaii, and other Pacific islands.

It is estimated that by 2050, the world will need 70 to 100 percent more food than is now available.

At the beginning of the twenty-first century there were more than 6 billion people on Earth.

The great majority of the world's food supply is based on ______ kinds of crop plants.

The domestication of plants in the Fertile Crescent began about ______ years ago.

______ is a particularly salt-tolerant plant that may prove useful in producing salt-tolerant hybrids.

Spices are usually derived from parts of a plant other than the leaves.

The distinctive agriculture that developed in the south central Andes of South America was based on:

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

Filters

Plantains are a variety of first cultivated in tropical Asia.