Question 1

Although energy flows in one direction in an ecosystem, nutrients ____ through an ecosystem.

Accepted Answer

A) move from consumers to producers 
B) drive the energy flow 
C) build up 
D) deteriorate 
E) cycle 
A) move from consumers to producers 
B) drive the energy flow 
C) build up 
D) deteriorate 
E) cycle

Question 2

Commensalism is a type of ____.

Accepted Answer

A) predation 
B) symbiosis 
C) active competition 
D) scramble competition 
E) competitive exclusion 
A) predation 
B) symbiosis 
C) active competition 
D) scramble competition 
E) competitive exclusion

Question 3

An aquifer is most closely related to ____.

Accepted Answer

A) sea water 
B) lake water 
C) stream water 
D) glacial water 
E) groundwater 
A) sea water 
B) lake water 
C) stream water 
D) glacial water 
E) groundwater

Question 4

Which is formed from the carbon shells of marine organisms?

Accepted Answer

A) limestone 
B) phosphates 
C) glaciers 
D) rhyolite 
E) gneiss 
A) limestone 
B) phosphates 
C) glaciers 
D) rhyolite 
E) gneiss

Question 5

In the simplified prairie food chain illustrated in the pictures below, the letter D represents ____.

Accepted Answer

A) tertiary consumer 
B) secondary consumers 
C) first trophic level 
D) primary consumers 
E) third trophic level 
A) tertiary consumer 
B) secondary consumers 
C) first trophic level 
D) primary consumers 
E) third trophic level

Question 6

Match between columns
                        Premises: primary consumers

Accepted Answer

The Answer of herbivore and carnivore and producer and detritivore is...

Question 7

In the simplified prairie food chain illustrated by the pictures below, the letter C represents a ____.

Accepted Answer

A) tertiary consumer 
B) secondary consumers 
C) first trophic level 
D) primary consumers 
E) third trophic level 
A) tertiary consumer 
B) secondary consumers 
C) first trophic level 
D) primary consumers 
E) third trophic level

Question 8

Match between columns
                        Premises: primary producer

Accepted Answer

The Answer of C and D and A and B is...

Question 9

Solenopsis invicta, a species of fire ant, was introduced to the United States from ____.

Accepted Answer

A) South America 
B) Canada 
C) Asia 
D) Africa 
E) Europe 
A) South America 
B) Canada 
C) Asia 
D) Africa 
E) Europe

Question 10

The process that converts nitrate into nitrogen gas is known as ____.

Accepted Answer

A) denitrification 
B) nitrification 
C) nitrogen fixation 
D) assimilation 
E) assimilation and nitrification 
A) denitrification 
B) nitrification 
C) nitrogen fixation 
D) assimilation 
E) assimilation and nitrification

Question 11

Match between columns
                        Premises: gas emitted from burning fuels, such as wood or oil

Accepted Answer

The Answer of global climate change and fossil fuels and is...

Question 12

Match between columns
                        Premises: precipitation into ocean

Accepted Answer

The Answer of A and C and B and E is...

Question 13

Which item would be most attractive to a fire ant?

Accepted Answer

A) an electric can opener 
B) a canvas patio umbrella 
C) aluminum foil 
D) a ceramic flower pot 
E) a leather sofa 
A) an electric can opener 
B) a canvas patio umbrella 
C) aluminum foil 
D) a ceramic flower pot 
E) a leather sofa

Question 14

In a hypothetical land ecosystem, plants (the primary producers)capture 1000 kilocalories of sunlight energy per square meter per year. Approximately how many kilocalories of the plant's energy will be harvested by the third trophic level?

Accepted Answer

A) 1 
B) 10 
C) 100 
D) 1000 
E) 2000 
A) 1 
B) 10 
C) 100 
D) 1000 
E) 2000

Question 15

Species richness and the relative abundance of each species determine ____.

Accepted Answer

A) the species composition of an ecosystem 
B) the species diversity of a community 
C) the species composition of a population 
D) the species diversity of the biosphere 
E) the species diversity in a niche 
A) the species composition of an ecosystem 
B) the species diversity of a community 
C) the species composition of a population 
D) the species diversity of the biosphere 
E) the species diversity in a niche

Question 16

Nitrogen is released into the atmosphere by ____.

Accepted Answer

A) nitrogen fixation 
B) denitrification 
C) nitrification 
D) ammonification 
E) decomposition 
A) nitrogen fixation 
B) denitrification 
C) nitrification 
D) ammonification 
E) decomposition

Question 17

Match between columns
                        Premises: derived from the ancient remains of plants

Accepted Answer

The Answer of carbon dioxide and global climate change and is...

Question 18

Which is a factor in determining which plant type becomes the pioneer species in a primary succession event?

Accepted Answer

A) the species of plants that preceded it 
B) the animals that occupy the area 
C) chance events that affect the order in which pioneer species arrive 
D) the nature of the existing soils 
E) the type of disturbance 
A) the species of plants that preceded it 
B) the animals that occupy the area 
C) chance events that affect the order in which pioneer species arrive 
D) the nature of the existing soils 
E) the type of disturbance

Question 19

In this figure, what do the orange arrows marked #3 indicate?

Accepted Answer

A) light energy 
B) heat energy 
C) greenhouse gases 
D) atmospheric gases 
E) carbon dioxide 
A) light energy 
B) heat energy 
C) greenhouse gases 
D) atmospheric gases 
E) carbon dioxide

Question 20

Match between columns
                        Premises: an earthworm

Accepted Answer

The Answer of decomposer and producer and herbivore and carnivore is...

Exam 17: Communities and Ecosystems

Although energy flows in one direction in an ecosystem, nutrients ____ through an ecosystem.

Commensalism is a type of ____.

An aquifer is most closely related to ____.

Which is formed from the carbon shells of marine organisms?

In the simplified prairie food chain illustrated in the pictures below, the letter D represents ____.

In the simplified prairie food chain illustrated by the pictures below, the letter C represents a ____.

Solenopsis invicta, a species of fire ant, was introduced to the United States from ____.

The process that converts nitrate into nitrogen gas is known as ____.

Which item would be most attractive to a fire ant?

In a hypothetical land ecosystem, plants (the primary producers)capture 1000 kilocalories of sunlight energy per square meter per year. Approximately how many kilocalories of the plant's energy will be harvested by the third trophic level?

Species richness and the relative abundance of each species determine ____.

Nitrogen is released into the atmosphere by ____.

Which is a factor in determining which plant type becomes the pioneer species in a primary succession event?

In this figure, what do the orange arrows marked #3 indicate?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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