Question 1

The upper and lower tidal zones in which the barnacles Balanus and Chthalamus thrive when both species are present illustrate the principle of

Accepted Answer

A) symbiotic inclusion. 
B) parasitism. 
C) oceanic restriction. 
D) competitive exclusion. 
E) None of the answers are correct. 
A) symbiotic inclusion. 
B) parasitism. 
C) oceanic restriction. 
D) competitive exclusion. 
E) None of the answers are correct.

Question 2

Which of the following is NOT a free-floating photosynthetic organism found in a lake?

Accepted Answer

A) phytoplankton 
B) green algae 
C) zooplankton 
D) cyanobacteria 
E) diatom 
A) phytoplankton 
B) green algae 
C) zooplankton 
D) cyanobacteria 
E) diatom

Question 3

What is a challenge that organisms living in an estuary face that other aquatic organisms normally do not face?

Accepted Answer

A) changes in temperature at different depths 
B) daily changes in salinity 
C) movement of water 
D) light penetrating only through the photic zone 
E) damage from pollution 
A) changes in temperature at different depths 
B) daily changes in salinity 
C) movement of water 
D) light penetrating only through the photic zone 
E) damage from pollution

Question 4

In a decidous forest,for example,succession will always increase species richness.

Accepted Answer

A) True 
 B)False

Question 5

All deserts are characterized by hot,dry climates.

Accepted Answer

A) True 
 B)False

Question 6

Carbon returns to the atmosphere

Accepted Answer

A) as carbon dioxide. 
B) from respiration of plants. 
C) by the burning of fossil fuels. 
D) from respiration of animals. 
E) All answers are correct. 
A) as carbon dioxide. 
B) from respiration of plants. 
C) by the burning of fossil fuels. 
D) from respiration of animals. 
E) All answers are correct.

Question 7

An Arctic community affects the tundra ecosystem by

Accepted Answer

A) the amount of waste it produces. 
B) the amount of oxygen it uses. 
C) All answers are correct. 
D) the amount of sunlight it captures for photosynthesis. 
E) the amount of habitat space it requires. 
A) the amount of waste it produces. 
B) the amount of oxygen it uses. 
C) All answers are correct. 
D) the amount of sunlight it captures for photosynthesis. 
E) the amount of habitat space it requires.

Question 8

Which two parameters most influence the location of biomes?

Accepted Answer

A) altitude and latitude 
B) latitude and temperature 
C) temperature and precipitation 
D) precipitation and altitude 
E) precipitation and latitude 
A) altitude and latitude 
B) latitude and temperature 
C) temperature and precipitation 
D) precipitation and altitude 
E) precipitation and latitude

Question 9

An organism that can use solar energy and inorganic substances to produce all the organic material it requires is a(n)

Accepted Answer

A) producer and heterotroph. 
B) heterotroph. 
C) autotroph and producer. 
D) autotroph. 
E) producer. 
A) producer and heterotroph. 
B) heterotroph. 
C) autotroph and producer. 
D) autotroph. 
E) producer.

Question 10

Within convection cells,warm moist air rises from the equator and descends at 20-30 degrees from the equator.Convection cells are partially responsible for the distribution of which two biomes?

Accepted Answer

A) tropical rain forests and temperate grasslands 
B) boreal forests and subtropical deserts 
C) tropical rain forests and subtropical deserts 
D) tropical rain forests and arctic tundra 
E) boreal forests and temperate forests 
A) tropical rain forests and temperate grasslands 
B) boreal forests and subtropical deserts 
C) tropical rain forests and subtropical deserts 
D) tropical rain forests and arctic tundra 
E) boreal forests and temperate forests

Question 11

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat",what did the scientists conclude from the figure?

Accepted Answer

A) Adding the virus back to virus-free fungi decreased plant survival. 
B) Infecting plants with the virus increased their survival. 
C) Infecting plants with the virus decreased their survival. 
D) Infecting the fungus with the virus allowed them to grow in the heat. 
E) Adding the virus back to virus-free fungi increased plant survival. 
A) Adding the virus back to virus-free fungi decreased plant survival. 
B) Infecting plants with the virus increased their survival. 
C) Infecting plants with the virus decreased their survival. 
D) Infecting the fungus with the virus allowed them to grow in the heat. 
E) Adding the virus back to virus-free fungi increased plant survival.

Question 12

Resource partitioning allows only a single species to use a resource.

Accepted Answer

A) True 
 B)False

Question 13

The rain shadow associated with mountains

Accepted Answer

A) is on the downwind side and has a wetter climate than the upwind side of the mountain. 
B) is on the upwind side and has a drier climate than the downwind side of the mountain. 
C) is on the downwind side and has a drier climate than the upwind side of the mountain. 
D) is on the upwind side and has a wetter climate than the downwind side of the mountain. 
A) is on the downwind side and has a wetter climate than the upwind side of the mountain. 
B) is on the upwind side and has a drier climate than the downwind side of the mountain. 
C) is on the downwind side and has a drier climate than the upwind side of the mountain. 
D) is on the upwind side and has a wetter climate than the downwind side of the mountain.

Question 14

In ecology,a community that remains fairly constant over time is referred to as a

Accepted Answer

A) successful community. 
B) climax community. 
C) keystone community. 
D) primary community. 
E) tertiary community. 
A) successful community. 
B) climax community. 
C) keystone community. 
D) primary community. 
E) tertiary community.

Question 15

The process by which liquid water becomes water vapor (a gas)is

Accepted Answer

A) sublimation. 
B) condensation. 
C) convection. 
D) evaporation. 
E) All answers are correct. 
A) sublimation. 
B) condensation. 
C) convection. 
D) evaporation. 
E) All answers are correct.

Question 16

Which of the following is NOT characteristic of a tropical rain forest?

Accepted Answer

A) warm climate 
B) nutrient-rich soil 
C) a year-round growing season for plants 
D) a tremendous diversity of animal life 
E) a location near the equator 
A) warm climate 
B) nutrient-rich soil 
C) a year-round growing season for plants 
D) a tremendous diversity of animal life 
E) a location near the equator

Question 17

Tropical rain forest soils are usually

Accepted Answer

A) nutrient-rich. 
B) low in organic matter. 
C) nutrient-poor and low in organic matter. 
D) nutrient-rich and low in organic matter. 
E) nutrient-poor. 
A) nutrient-rich. 
B) low in organic matter. 
C) nutrient-poor and low in organic matter. 
D) nutrient-rich and low in organic matter. 
E) nutrient-poor.

Question 18

The physical place where members of a population live is termed a

Accepted Answer

A) competitive zone. 
B) community. 
C) habitat. 
D) symbiont. 
E) nichE. 
A) competitive zone. 
B) community. 
C) habitat. 
D) symbiont. 
E) nichE.

Question 19

The yearly rainfall of a desert biome is

Accepted Answer

A) 150 to 200 centimeters per year. 
B) 1 to 5 centimeters per year. 
C) less than 20 centimeters per year. 
D) more than 200 centimeters per year. 
E) 50 to 100 centimeters per year. 
A) 150 to 200 centimeters per year. 
B) 1 to 5 centimeters per year. 
C) less than 20 centimeters per year. 
D) more than 200 centimeters per year. 
E) 50 to 100 centimeters per year.

Question 20

As an overall average,about ______ of the energy at one trophic level is generally available to the next highest rank in the food chain.

Accepted Answer

A) two percent 
B) ten percent 
C) four percent 
D) seven percent 
E) twenty percent 
A) two percent 
B) ten percent 
C) four percent 
D) seven percent 
E) twenty percent

Exam 19: Communities and Ecosystems

The upper and lower tidal zones in which the barnacles Balanus and Chthalamus thrive when both species are present illustrate the principle of

Which of the following is NOT a free-floating photosynthetic organism found in a lake?

What is a challenge that organisms living in an estuary face that other aquatic organisms normally do not face?

In a decidous forest,for example,succession will always increase species richness.

All deserts are characterized by hot,dry climates.

Carbon returns to the atmosphere

An Arctic community affects the tundra ecosystem by

Which two parameters most influence the location of biomes?

An organism that can use solar energy and inorganic substances to produce all the organic material it requires is a(n)

Within convection cells,warm moist air rises from the equator and descends at 20-30 degrees from the equator.Convection cells are partially responsible for the distribution of which two biomes?

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat",what did the scientists conclude from the figure?

Resource partitioning allows only a single species to use a resource.

The rain shadow associated with mountains

In ecology,a community that remains fairly constant over time is referred to as a

The process by which liquid water becomes water vapor (a gas)is

Which of the following is NOT characteristic of a tropical rain forest?

Tropical rain forest soils are usually

The physical place where members of a population live is termed a

The yearly rainfall of a desert biome is

As an overall average,about ______ of the energy at one trophic level is generally available to the next highest rank in the food chain.

Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

How Cells Release Energy

DNA Structure and Gene Function

DNA Replication and Cell Division

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Population Ecology

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

Regulating Temperature, nutrients, and Body Fluids

The Immune System

Animal Reproduction and Development

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