Question 1

The tropics contain 75% of the world's species.

Accepted Answer

A) True 
 B)False  False

Question 2

A characteristic plant found in western North America where desert grades into a savanna-type community is:

Accepted Answer

A)  Welwitschia. 
B)  succulent euphorbes. 
C)  juniper. 
D)  creosote bush. 
E)  Arizona honeysweet. 
A)  Welwitschia. 
B)  succulent euphorbes. 
C)  juniper. 
D)  creosote bush. 
E)  Arizona honeysweet. C

Question 3

A deciduous conifer abundant in some taiga areas is:

Accepted Answer

A)  fir. 
B)  spruce. 
C)  pine. 
D)  larch. 
E)  poplar. 
A)  fir. 
B)  spruce. 
C)  pine. 
D)  larch. 
E)  poplar. D

Question 4

The juniper woodlands of the United States occur in areas adjacent to low-elevation deserts.

Accepted Answer

A) True 
 B)False

Question 5

The addition of phosphorus fertilizers to cleared tropical soils is usually helpful in restoring their fertility.

Accepted Answer

A) True 
 B)False

Question 6

An increase in elevation of ______ and an increase in latitude of ______ are generally accompanied by the same decrease in mean atmospheric temperature.

Accepted Answer

A)  100 meters; 0.5$\degree$ 
B)  100 meters; 1.0$\degree$ 
C)  100 meters; 10.0$\degree$ 
D)  100 kilometers; 1.0$\degree$ 
E)  100 kilometers; 10.0$\degree$ 
A)  100 meters; 0.5$\degree$ 
B)  100 meters; 1.0$\degree$ 
C)  100 meters; 10.0$\degree$ 
D)  100 kilometers; 1.0$\degree$ 
E)  100 kilometers; 10.0$\degree$

Question 7

The sharing of genera is a striking feature found in the:

Accepted Answer

A)  grasslands. 
B)  Mediterranean scrub. 
C)  taiga. 
D)  temperate mixed and coniferous forests. 
E)  temperate deciduous forests. 
A)  grasslands. 
B)  Mediterranean scrub. 
C)  taiga. 
D)  temperate mixed and coniferous forests. 
E)  temperate deciduous forests.

Question 8

The cold deserts receive precipitation as snow.

Accepted Answer

A) True 
 B)False

Question 9

More types of annual plants are found in deserts than in any other biome.

Accepted Answer

A) True 
 B)False

Question 10

In savannas, epiphytes and annual herbs are abundant.

Accepted Answer

A) True 
 B)False

Question 11

All of the following are adaptations of desert plants EXCEPT:

Accepted Answer

A)  the ability to carry out CAM photosynthesis. 
B)  the ability to carry out C4 photosynthesis. 
C)  the ability to complete their life cycles before soil moisture is depleted. 
D)  the ability to grow as succulents having deep root systems. 
E)  the ability to store water in special tissues. 
A)  the ability to carry out CAM photosynthesis. 
B)  the ability to carry out C4 photosynthesis. 
C)  the ability to complete their life cycles before soil moisture is depleted. 
D)  the ability to grow as succulents having deep root systems. 
E)  the ability to store water in special tissues.

Question 12

A biome refers to a type of relatively homogeneous vegetation occurring over large terrestrial areas.

Accepted Answer

A) True 
 B)False

Question 13

Areas of monsoon forest have high precipitation throughout the year.

Accepted Answer

A) True 
 B)False

Question 14

The most extreme deserts are found:

Accepted Answer

A)  at the equator. 
B)  around 10º north and south. 
C)  around 20º north. 
D)  around 20º south. 
E)  around 30º north and south. 
A)  at the equator. 
B)  around 10º north and south. 
C)  around 20º north. 
D)  around 20º south. 
E)  around 30º north and south.

Question 15

Which of the following statements concerning permafrost is FALSE?

Accepted Answer

A)  It does not occur in the taiga. 
B)  It provides a base for soils that are high in organic matter. 
C)  It helps stabilize soils. 
D)  Its removal causes "drunken forests." 
E)  It is a permanently frozen zone. 
A)  It does not occur in the taiga. 
B)  It provides a base for soils that are high in organic matter. 
C)  It helps stabilize soils. 
D)  Its removal causes "drunken forests." 
E)  It is a permanently frozen zone.

Question 16

In the grassland biome, fire favors the growth of plants with basal meristems.

Accepted Answer

A) True 
 B)False

Question 17

Mediterranean scrub communities in different areas of the world tend to resemble each other even though their plant species are unrelated.

Accepted Answer

A) True 
 B)False

Question 18

The temperate deciduous forest biome:

Accepted Answer

A)  is equally widespread in both the Northern and Southern Hemispheres. 
B)  has liquid water available to plants all year. 
C)  is characterized by trees that retain their leaves all year. 
D)  has precipitation evenly distributed throughout the year. 
E)  has cool summers and relatively warm winters. 
A)  is equally widespread in both the Northern and Southern Hemispheres. 
B)  has liquid water available to plants all year. 
C)  is characterized by trees that retain their leaves all year. 
D)  has precipitation evenly distributed throughout the year. 
E)  has cool summers and relatively warm winters.

Question 19

Most deserts are found between 30$\degree$north latitude and 30$\degree$south latitude.

Accepted Answer

A) True 
 B)False

Question 20

A hot desert differs from a cold desert in that a cold desert:

Accepted Answer

A)  is found at lower latitudes. 
B)  is found in a climate that favors succulents. 
C)  is cold at night but very hot during the day. 
D)  is found in areas that have two peaks of rainfall during the year. 
E)  is characterized by small-leaved shrubs such as sagebrush. 
A)  is found at lower latitudes. 
B)  is found in a climate that favors succulents. 
C)  is cold at night but very hot during the day. 
D)  is found in areas that have two peaks of rainfall during the year. 
E)  is characterized by small-leaved shrubs such as sagebrush.

Exam 32: Global Ecology

The tropics contain 75% of the world's species.

A characteristic plant found in western North America where desert grades into a savanna-type community is:

A deciduous conifer abundant in some taiga areas is:

The juniper woodlands of the United States occur in areas adjacent to low-elevation deserts.

The addition of phosphorus fertilizers to cleared tropical soils is usually helpful in restoring their fertility.

An increase in elevation of ______ and an increase in latitude of ______ are generally accompanied by the same decrease in mean atmospheric temperature.

The sharing of genera is a striking feature found in the:

The cold deserts receive precipitation as snow.

More types of annual plants are found in deserts than in any other biome.

In savannas, epiphytes and annual herbs are abundant.

All of the following are adaptations of desert plants EXCEPT:

A biome refers to a type of relatively homogeneous vegetation occurring over large terrestrial areas.

Areas of monsoon forest have high precipitation throughout the year.

The most extreme deserts are found:

Which of the following statements concerning permafrost is FALSE?

In the grassland biome, fire favors the growth of plants with basal meristems.

Mediterranean scrub communities in different areas of the world tend to resemble each other even though their plant species are unrelated.

The temperate deciduous forest biome:

Most deserts are found between 30 °\degree° north latitude and 30 °\degree° south latitude.

A hot desert differs from a cold desert in that a cold desert:

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

Plants and People

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

Filters

An increase in elevation of and an increase in latitude of are generally accompanied by the same decrease in mean atmospheric temperature.

Most deserts are found between 30 $\degree$ north latitude and 30 $\degree$ south latitude.