Question 1

The concentration of the pesticide DDT is likely highest in which of the following?

Accepted Answer

A) a minnow 
B) a mosquito larva 
C) a seagull 
D) plankton 
E) algae 
A) a minnow 
B) a mosquito larva 
C) a seagull 
D) plankton 
E) algae

Question 2

A type of symbiosis in which one member of the relationship benefits and the other is harmed is

Accepted Answer

A) predation. 
B) mutualism. 
C) commensalism. 
D) parasitism. 
E) intraspecific competition. 
A) predation. 
B) mutualism. 
C) commensalism. 
D) parasitism. 
E) intraspecific competition.

Question 3

Mercury released from coal-burning power plants would be at the highest concentration in

Accepted Answer

A) the phytoplankton. 
B) eagles that eat the walleye. 
C) the zooplankton. 
D) the minnows. 
E) the walleyE. 
A) the phytoplankton. 
B) eagles that eat the walleye. 
C) the zooplankton. 
D) the minnows. 
E) the walleyE.

Question 4

A type of symbiosis in which both species benefit is

Accepted Answer

A) predation. 
B) parasitism. 
C) mutualism. 
D) commensalism. 
E) intraspecific competition. 
A) predation. 
B) parasitism. 
C) mutualism. 
D) commensalism. 
E) intraspecific competition.

Question 5

As temperatures in an African savanna increase and rainfall decreases,it would most likely change into

Accepted Answer

A) taigA. 
B) desert. 
C) tropical rainforest. 
D) temperate forest. 
E) tundra. 
A) taigA. 
B) desert. 
C) tropical rainforest. 
D) temperate forest. 
E) tundra.

Question 6

Lichens live on the side of trees,obtaining better access to sunlight,and produce no harm to the tree.This is an example of

Accepted Answer

A) commensalism. 
B) mutualism. 
C) parasitism. 
D) predation. 
E) herbivory. 
A) commensalism. 
B) mutualism. 
C) parasitism. 
D) predation. 
E) herbivory.

Question 7

The Earth has a constant tilt of ______ on its axis from its plane of orbit.

Accepted Answer

A) 12.5 degrees 
B) 23.5 degrees 
C) 30 degrees 
D) 9 degrees 
E) 5.5 degrees 
A) 12.5 degrees 
B) 23.5 degrees 
C) 30 degrees 
D) 9 degrees 
E) 5.5 degrees

Question 8

The "rain shadow" of a mountain is found on the leeward side of the mountain.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is NOT an abiotic component or condition of an ecosystem?

Accepted Answer

A) water 
B) archaea 
C) rock 
D) salinity 
E) temperature 
A) water 
B) archaea 
C) rock 
D) salinity 
E) temperature

Question 10

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat",what was the purpose of repeatedly drying,freezing,and thawing some of the fungi?

Accepted Answer

A) to kill the fungi 
B) to prepare the fungi for growth at 65$\circ$C 
C) to remove the virus 
D) to prepare the fungi to infect the panic grass 
E) to make the fungus more susceptible to the virus 
A) to kill the fungi 
B) to prepare the fungi for growth at 65$\circ$C 
C) to remove the virus 
D) to prepare the fungi to infect the panic grass 
E) to make the fungus more susceptible to the virus

Question 11

An insect that resembles the face of a snake is using ______ to avoid predation.

Accepted Answer

A) camouflage 
B) warning coloration 
C) mimicry 
D) chemical defense 
E) mutualism 
A) camouflage 
B) warning coloration 
C) mimicry 
D) chemical defense 
E) mutualism

Question 12

Tropical rainforest destruction threatens the global water cycle and carbon cycle.

Accepted Answer

A) True 
 B)False

Question 13

Scientists reported that hurricane intensity has increased over the past 35 years,coinciding with increasing sea temperature.Why would climate change lead to an increase in hurricane intensity?

Accepted Answer

A) increase in sea level due to melting of the polar ice caps 
B) increased evaporation of water into the atmosphere 
C) increased condensation of water falling as snow over the mainland 
D) increased temperatures at higher latitudes 
E) increased conversion of grassland biomes to desert 
A) increase in sea level due to melting of the polar ice caps 
B) increased evaporation of water into the atmosphere 
C) increased condensation of water falling as snow over the mainland 
D) increased temperatures at higher latitudes 
E) increased conversion of grassland biomes to desert

Question 14

The ______ states that two species cannot coexist indefinitely in the same niche.

Accepted Answer

A) endosymbiotic theory 
B) zonal exclusion theory 
C) co-inclusion principle 
D) second law of thermodynamics 
E) competitive exclusion principle 
A) endosymbiotic theory 
B) zonal exclusion theory 
C) co-inclusion principle 
D) second law of thermodynamics 
E) competitive exclusion principle

Question 15

Nitrogen-fixing bacteria in the roots of soybeans help provide a source of nitrogen to the plants,and in exchange,the bacteria obtain food from the plants.Which type of interaction is this?

Accepted Answer

A) mutualism 
B) commensalism 
C) parasitism 
D) predation 
E) herbivory 
A) mutualism 
B) commensalism 
C) parasitism 
D) predation 
E) herbivory

Question 16

If there are 10,000 calories of net primary productivity in an ecosystem,how much energy will be generally available to a primary consumer?

Accepted Answer

A) 100 calories 
B) 10,000 calories 
C) 10 calories 
D) 1,000 calories 
E) 1 calorie 
A) 100 calories 
B) 10,000 calories 
C) 10 calories 
D) 1,000 calories 
E) 1 calorie

Question 17

______ bacteria return nitrogen to the atmosphere by converting nitrates to N2.

Accepted Answer

A) Nitrogen-fixing 
B) In nitrification, 
C) In denitrification, 
D) In transpiration, 
E) In respiration, 
A) Nitrogen-fixing 
B) In nitrification, 
C) In denitrification, 
D) In transpiration, 
E) In respiration,

Question 18

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat",panic grass is a(n)

Accepted Answer

A) monocot. 
B) dicot. 
C) algae. 
D) seedless plant. 
E) bryophytE. 
A) monocot. 
B) dicot. 
C) algae. 
D) seedless plant. 
E) bryophytE.

Question 19

Some scientists predict that as atmospheric carbon dioxide levels increase,plant growth will also increase.What is the best explanation for this hypothesis?

Accepted Answer

A) Plants consume carbon dioxide from the atmosphere during photosynthesis. 
B) Plants release carbon dioxide into the atmosphere during photosynthesis. 
C) Plants consume carbon dioxide from the atmosphere during respiration. 
D) Plants release carbon dioxide into the atmosphere during respiration. 
A) Plants consume carbon dioxide from the atmosphere during photosynthesis. 
B) Plants release carbon dioxide into the atmosphere during photosynthesis. 
C) Plants consume carbon dioxide from the atmosphere during respiration. 
D) Plants release carbon dioxide into the atmosphere during respiration.

Question 20

Organisms that obtain their energy from producers or other consumers are

Accepted Answer

A) autotrophs and producers. 
B) producers and heterotrophs. 
C) autotrophs. 
D) producers. 
E) heterotrophs. 
A) autotrophs and producers. 
B) producers and heterotrophs. 
C) autotrophs. 
D) producers. 
E) heterotrophs.

Exam 19: Communities and Ecosystems

The concentration of the pesticide DDT is likely highest in which of the following?

A type of symbiosis in which one member of the relationship benefits and the other is harmed is

Mercury released from coal-burning power plants would be at the highest concentration in

A type of symbiosis in which both species benefit is

As temperatures in an African savanna increase and rainfall decreases,it would most likely change into

Lichens live on the side of trees,obtaining better access to sunlight,and produce no harm to the tree.This is an example of

The Earth has a constant tilt of ______ on its axis from its plane of orbit.

The "rain shadow" of a mountain is found on the leeward side of the mountain.

Which of the following is NOT an abiotic component or condition of an ecosystem?

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat",what was the purpose of repeatedly drying,freezing,and thawing some of the fungi?

An insect that resembles the face of a snake is using ______ to avoid predation.

Tropical rainforest destruction threatens the global water cycle and carbon cycle.

Scientists reported that hurricane intensity has increased over the past 35 years,coinciding with increasing sea temperature.Why would climate change lead to an increase in hurricane intensity?

The ______ states that two species cannot coexist indefinitely in the same niche.

Nitrogen-fixing bacteria in the roots of soybeans help provide a source of nitrogen to the plants,and in exchange,the bacteria obtain food from the plants.Which type of interaction is this?

If there are 10,000 calories of net primary productivity in an ecosystem,how much energy will be generally available to a primary consumer?

______ bacteria return nitrogen to the atmosphere by converting nitrates to N2.

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat",panic grass is a(n)

Some scientists predict that as atmospheric carbon dioxide levels increase,plant growth will also increase.What is the best explanation for this hypothesis?

Organisms that obtain their energy from producers or other consumers are

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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______ bacteria return nitrogen to the atmosphere by converting nitrates to N₂.