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Test’Bank
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Bowman‘•‘Hacker
Chapter’1:’The’Web’of’Life
TEST’BANK’QUESTIONS
Multiple’Choice
1. What‘is‘one‘reason‘that‘amphibians‘are‘especially‘good‘biological‘indicators‘of‘e
nvironmental‘conditions?
a. They‘live‘in‘both‘terrestrial‘and‘aquatic‘environments.
b. It‘is‘difficult‘for‘pollutants‘to‘pass‘through‘their‘skin.
c. They‘are‘declining‘in‘number.
d. They‘can‘tolerate‘high‘levels‘of‘pollution.
Answer:’a
Textbook’Reference:’Deformity’and’Decline’in’Amphibian’Populations:’A’Case’Study
Learning’Objective:’Not’aligned
Bloom’s’Level:‘2.‘Understanding
2. The‘ecological‘study‘of‘the‘effect‘of‘Ribeiroia’and‘pesticides‘on‘frog‘populations‘s
uggests‘that‘all‘of‘these‘statements‘about‘the‘study‘of‘ecology‘are‘true‘except’that
a. it‘describes‘how‘organisms‘affect‘the‘environment.
b. it‘describes‘how‘the‘environment‘affects‘organisms.
c. it‘studies‘how‘biotic‘and‘abiotic‘factors‘affect‘each‘other.
d. humans‘are‘not‘part‘of‘its‘subject‘matter.
Answer:’d
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:‘ 1.1.1‘Explain‘how‘interactions‘between‘organisms‘and‘their‘environm
ent‘can‘affect‘other‘organisms‘and‘potentially‘lead‘to‘unexpected‘consequences.‘Bloom’s’Le
vel:‘3.‘Applying
3. West‘Nile‘virus‘can‘be‘considered‘an‘example‘of‘an‘unintended‘consequence‘of‘e
cological‘interactions‘because‘it
a. originated‘in‘Africa.
b. is‘transmitted‘by‘mosquitoes.
c. emerged‘due‘to‘human‘impacts‘on‘the‘environment.
d. is‘increasing‘rapidly‘due‘to‘a‘rise‘in‘trematode‘populations.
Answer:’c
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:‘1.1.1‘Explain‘how‘interactions‘between‘organisms‘and‘their‘environm
ent‘can‘affect‘other‘organisms‘and‘potentially‘lead‘to‘unexpected‘consequences.‘Bloom’s’Le
vel:‘3.‘Applying
©‘2021‘Oxford‘University‘Press
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4. In‘1878,‘seal‘hunters‘introduced‘rabbits‘to‘Macquarie‘Island,‘between‘Australia‘and‘A
ntarctica.‘The‘rabbit‘population‘soared‘and‘the‘Myxoma‘virus‘was‘then‘introduced‘to‘kill
‘off‘rabbits.‘It‘worked,‘but‘the‘islands‘‘cats,‘which‘had‘depended‘on‘the‘rabbits‘for‘food,‘
began‘eating‘seabirds‘instead.‘To‘save‘the‘seabirds,‘scientists‘started‘a‘program‘to‘kill‘off‘
the‘cats.‘Twenty-
four‘years‘later,‘in‘2009,‘the‘rabbit‘population‘had‘exploded‘again,‘and‘rabbits‘were‘rava
ging‘native‘plant‘species‘and‘devastating‘the‘island‘s‘ecosystem.‘This‘story‘appears‘to‘be
‘an‘example‘of
a. sound,‘responsible‘ecological‘management.
b. unintended‘ecological‘consequences.
c. predictable‘but‘unavoidable‘consequences.
d. a‘series‘of‘catastrophes‘resulting‘from‘random‘chance.
Answer:’d
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:‘1.1.1‘Explain‘how‘interactions‘between‘organisms‘and‘their‘environm
ent‘can‘affect‘other‘organisms‘and‘potentially‘lead‘to‘unexpected‘consequences.‘Bloom’s’Le
vel:‘4.‘Analyzing
5. What‘evidence‘led‘Ruth‘and‘Sessions‘to‘conclude‘that‘parasites‘could‘be‘the‘cause‘of‘s
ome‘of‘the‘deformities‘in‘the‘frogs‘found‘in‘the‘ponds‘of‘Northern‘California?
a. None‘of‘the‘deformed‘frogs‘found‘in‘the‘ponds‘were‘infected‘with‘the‘parasites.
b. They‘directly‘observed‘the‘parasites‘causing‘the‘deformities.
c. Glass‘beads‘placed‘near‘the‘location‘of‘limb‘development‘in‘tadpoles‘mimicked‘the‘e
ffect‘of‘parasites‘and‘caused‘deformities.
d. Deformities‘in‘the‘frogs‘occurred‘in‘nature‘but‘not‘in‘the‘laboratory.
Answer:’c
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘2.‘Understanding
6. In‘addition‘to‘the‘frogs‘themselves,‘which‘organisms‘act‘as‘hosts‘for‘the‘flatworm‘that‘h
as‘been‘linked‘to‘deformities‘in‘frogs?
a. Birds‘and‘snails
b. Snails‘and‘turtles
c. Turtles‘and‘birds
d. Snails‘and‘clams
Answer:’a
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘1.‘Remembering
7. Refer‘to‘the‘figure.
©‘2021‘Oxford‘University‘Press
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,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
The‘figure‘is‘based‘on‘Johnson‘s‘experiment‘on‘the‘effects‘of‘trematode‘parasites‘on‘tadpo
les.‘Which‘statement‘best‘describes‘the‘control‘group‘in‘the‘experiment?
a. Tadpoles‘were‘grown‘in‘the‘absence‘of‘trematode‘parasites.
b. Tadpoles‘were‘allowed‘to‘grow‘in‘nets‘in‘their‘natural‘environment.
c. Tadpoles‘were‘grown‘in‘the‘presence‘of‘only‘one‘trematode‘parasite.
d. Tadpoles‘were‘grown‘in‘a‘tank‘in‘which‘the‘concentration‘of‘trematode‘parasites‘was‘si
milar‘to‘the‘parasite‘concentration‘of‘ponds‘in‘which‘deformed‘frogs‘were‘found.‘Answer
:‘ a
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘2.‘Understanding
8. Refer‘to‘the‘figure.
The‘figure‘is‘based‘on‘Johnson‘s‘experiment‘on‘the‘effects‘of‘trematode‘parasites‘on‘tadpo
les.‘Which‘claim‘is‘supported‘by‘the‘figure?
©‘2021‘Oxford‘University‘Press
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a. As‘the‘number‘of‘parasites‘that‘the‘tadpoles‘were‘exposed‘to‘decreased,‘the‘percentage‘o
f‘surviving‘frogs‘with‘deformities‘increased.
b. As‘the‘number‘of‘parasites‘that‘the‘tadpoles‘were‘exposed‘to‘increased,‘the‘percentage‘o
f‘surviving‘tadpoles‘decreased.
c. If‘there‘were‘no‘parasites‘present,‘100%‘of‘the‘tadpoles‘survived‘to‘metamorphosis.
d. Tadpoles‘with‘moderate‘levels‘of‘parasites‘had‘the‘lowest‘percent‘of‘deformities‘in‘a
dults.
Answer:’b
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘4.‘Analyzing
9. Refer‘to‘the‘figure.
The‘figure‘is‘based‘on‘Johnson‘s‘experiment‘on‘the‘effects‘of‘trematode‘parasites‘on‘tadp
oles.‘Suppose‘that‘60‘tadpoles‘are‘exposed‘to‘32‘parasites‘per‘tadpole.‘Based‘on‘the‘results
‘of‘the‘figure,‘about‘how‘many‘tadpoles‘would‘you‘expect‘to‘survive‘to‘metamorphosis?
a. 12
b. 25
c. 40
d. 58
Answer:’b
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘3.‘Applying
10. Refer‘to‘the‘figure.
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
The‘figure‘is‘based‘on‘Kiesecker‘s‘field‘experiments‘testing‘the‘effects‘of‘parasites‘and‘pesticid
es‘on‘frogs.‘Which‘statement‘is‘the‘most‘valid‘interpretation‘of‘the‘results?
a. Exposure‘to‘parasites‘was‘necessary‘for‘the‘frogs‘to‘become‘deformed.
b. All‘frogs‘exposed‘to‘parasites‘were‘deformed.
c. Exposure‘to‘pesticides‘was‘necessary‘for‘frogs‘to‘become‘deformed.
d. Exposure‘to‘pesticides‘had‘no‘effect‘on‘the‘percentage‘of‘frogs‘that‘became‘deformed.
Answer:’a
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘4.‘Analyzing
11. Refer‘to‘the‘figure.
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
The’figure’is’based’on’studies’of’the’effects’of’pesticides’on’the’tadpole’immune’system.’In’a
’laboratory’experiment,’wood’frog’(Rana’sylvatica)’tadpoles’were’exposed’to’low’or’high’c
oncentrations’of’a’pesticide,’and’then’Ribeiroia’parasites.’The’tadpoles’were’then’examine
d’for’(A)’numbers’of’eosinophils’and’(B)’numbers’of’Ribeiroia’cysts.’Error’bars’show’one’S
E’of’the’mean.’Which’statement’is’supported’by’the’evidence’shown’in’the’figure?
a. Tadpoles‘exposed‘to‘high‘levels‘of‘pesticides‘had‘more‘cysts‘per‘tadpole‘than‘those‘e
xposed‘to‘low‘levels‘of‘pesticides.
b. Tadpoles‘exposed‘to‘pesticides‘had‘fewer‘eosinophils‘than‘those‘not‘exposed‘to‘p
esticides.
c. The‘number‘of‘cysts‘per‘tadpole‘was‘similar‘in‘the‘solvent‘control‘and‘low‘pesticide‘g
roups.
d. Pesticides‘decreased‘eosinophils‘more‘when‘tadpoles‘were‘exposed‘to‘high‘con
centrations‘of‘pesticides‘than‘when‘they‘were‘exposed‘to‘low‘concentrations.‘Ans
wer:‘b
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
Learning’Objective:’Not’aligned
Bloom’s’Level:‘4.‘Analyzing
12. Refer‘to‘the‘figure.
The’figure’is’based’on’studies’of’the’effects’of’pesticides’on’the’tadpole’immune’system.’In’a
’laboratory’experiment,’wood’frog’(Rana’sylvatica)’tadpoles’were’exposed’to’low’or’high’c
oncentrations’of’a’pesticide,’and’then’Ribeiroia’parasites.’The’tadpoles’were’then’examine
d’for’(A)’numbers’of’eosinophils’and’(B)’numbers’of’Ribeiroia’cysts.’Error’bars’show’one’S
E’of’the’mean.’Compared’with’the’control’group,’the’frogs’exposed’to’low’concentrations’o
f’pesticides’showed’an’increase’
percent’in’the’number’of’eosino
phils.
a. 18
b. 32
c. 55
d. 78
©‘2021‘Oxford‘University‘Press
mynursytest.store
Test’Bank
to’accompany
Ecology,’Fifth’Edition
Bowman‘•‘Hacker
Chapter’1:’The’Web’of’Life
TEST’BANK’QUESTIONS
Multiple’Choice
1. What‘is‘one‘reason‘that‘amphibians‘are‘especially‘good‘biological‘indicators‘of‘e
nvironmental‘conditions?
a. They‘live‘in‘both‘terrestrial‘and‘aquatic‘environments.
b. It‘is‘difficult‘for‘pollutants‘to‘pass‘through‘their‘skin.
c. They‘are‘declining‘in‘number.
d. They‘can‘tolerate‘high‘levels‘of‘pollution.
Answer:’a
Textbook’Reference:’Deformity’and’Decline’in’Amphibian’Populations:’A’Case’Study
Learning’Objective:’Not’aligned
Bloom’s’Level:‘2.‘Understanding
2. The‘ecological‘study‘of‘the‘effect‘of‘Ribeiroia’and‘pesticides‘on‘frog‘populations‘s
uggests‘that‘all‘of‘these‘statements‘about‘the‘study‘of‘ecology‘are‘true‘except’that
a. it‘describes‘how‘organisms‘affect‘the‘environment.
b. it‘describes‘how‘the‘environment‘affects‘organisms.
c. it‘studies‘how‘biotic‘and‘abiotic‘factors‘affect‘each‘other.
d. humans‘are‘not‘part‘of‘its‘subject‘matter.
Answer:’d
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:‘ 1.1.1‘Explain‘how‘interactions‘between‘organisms‘and‘their‘environm
ent‘can‘affect‘other‘organisms‘and‘potentially‘lead‘to‘unexpected‘consequences.‘Bloom’s’Le
vel:‘3.‘Applying
3. West‘Nile‘virus‘can‘be‘considered‘an‘example‘of‘an‘unintended‘consequence‘of‘e
cological‘interactions‘because‘it
a. originated‘in‘Africa.
b. is‘transmitted‘by‘mosquitoes.
c. emerged‘due‘to‘human‘impacts‘on‘the‘environment.
d. is‘increasing‘rapidly‘due‘to‘a‘rise‘in‘trematode‘populations.
Answer:’c
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:‘1.1.1‘Explain‘how‘interactions‘between‘organisms‘and‘their‘environm
ent‘can‘affect‘other‘organisms‘and‘potentially‘lead‘to‘unexpected‘consequences.‘Bloom’s’Le
vel:‘3.‘Applying
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
4. In‘1878,‘seal‘hunters‘introduced‘rabbits‘to‘Macquarie‘Island,‘between‘Australia‘and‘A
ntarctica.‘The‘rabbit‘population‘soared‘and‘the‘Myxoma‘virus‘was‘then‘introduced‘to‘kill
‘off‘rabbits.‘It‘worked,‘but‘the‘islands‘‘cats,‘which‘had‘depended‘on‘the‘rabbits‘for‘food,‘
began‘eating‘seabirds‘instead.‘To‘save‘the‘seabirds,‘scientists‘started‘a‘program‘to‘kill‘off‘
the‘cats.‘Twenty-
four‘years‘later,‘in‘2009,‘the‘rabbit‘population‘had‘exploded‘again,‘and‘rabbits‘were‘rava
ging‘native‘plant‘species‘and‘devastating‘the‘island‘s‘ecosystem.‘This‘story‘appears‘to‘be
‘an‘example‘of
a. sound,‘responsible‘ecological‘management.
b. unintended‘ecological‘consequences.
c. predictable‘but‘unavoidable‘consequences.
d. a‘series‘of‘catastrophes‘resulting‘from‘random‘chance.
Answer:’d
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:‘1.1.1‘Explain‘how‘interactions‘between‘organisms‘and‘their‘environm
ent‘can‘affect‘other‘organisms‘and‘potentially‘lead‘to‘unexpected‘consequences.‘Bloom’s’Le
vel:‘4.‘Analyzing
5. What‘evidence‘led‘Ruth‘and‘Sessions‘to‘conclude‘that‘parasites‘could‘be‘the‘cause‘of‘s
ome‘of‘the‘deformities‘in‘the‘frogs‘found‘in‘the‘ponds‘of‘Northern‘California?
a. None‘of‘the‘deformed‘frogs‘found‘in‘the‘ponds‘were‘infected‘with‘the‘parasites.
b. They‘directly‘observed‘the‘parasites‘causing‘the‘deformities.
c. Glass‘beads‘placed‘near‘the‘location‘of‘limb‘development‘in‘tadpoles‘mimicked‘the‘e
ffect‘of‘parasites‘and‘caused‘deformities.
d. Deformities‘in‘the‘frogs‘occurred‘in‘nature‘but‘not‘in‘the‘laboratory.
Answer:’c
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘2.‘Understanding
6. In‘addition‘to‘the‘frogs‘themselves,‘which‘organisms‘act‘as‘hosts‘for‘the‘flatworm‘that‘h
as‘been‘linked‘to‘deformities‘in‘frogs?
a. Birds‘and‘snails
b. Snails‘and‘turtles
c. Turtles‘and‘birds
d. Snails‘and‘clams
Answer:’a
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘1.‘Remembering
7. Refer‘to‘the‘figure.
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
The‘figure‘is‘based‘on‘Johnson‘s‘experiment‘on‘the‘effects‘of‘trematode‘parasites‘on‘tadpo
les.‘Which‘statement‘best‘describes‘the‘control‘group‘in‘the‘experiment?
a. Tadpoles‘were‘grown‘in‘the‘absence‘of‘trematode‘parasites.
b. Tadpoles‘were‘allowed‘to‘grow‘in‘nets‘in‘their‘natural‘environment.
c. Tadpoles‘were‘grown‘in‘the‘presence‘of‘only‘one‘trematode‘parasite.
d. Tadpoles‘were‘grown‘in‘a‘tank‘in‘which‘the‘concentration‘of‘trematode‘parasites‘was‘si
milar‘to‘the‘parasite‘concentration‘of‘ponds‘in‘which‘deformed‘frogs‘were‘found.‘Answer
:‘ a
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘2.‘Understanding
8. Refer‘to‘the‘figure.
The‘figure‘is‘based‘on‘Johnson‘s‘experiment‘on‘the‘effects‘of‘trematode‘parasites‘on‘tadpo
les.‘Which‘claim‘is‘supported‘by‘the‘figure?
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
a. As‘the‘number‘of‘parasites‘that‘the‘tadpoles‘were‘exposed‘to‘decreased,‘the‘percentage‘o
f‘surviving‘frogs‘with‘deformities‘increased.
b. As‘the‘number‘of‘parasites‘that‘the‘tadpoles‘were‘exposed‘to‘increased,‘the‘percentage‘o
f‘surviving‘tadpoles‘decreased.
c. If‘there‘were‘no‘parasites‘present,‘100%‘of‘the‘tadpoles‘survived‘to‘metamorphosis.
d. Tadpoles‘with‘moderate‘levels‘of‘parasites‘had‘the‘lowest‘percent‘of‘deformities‘in‘a
dults.
Answer:’b
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘4.‘Analyzing
9. Refer‘to‘the‘figure.
The‘figure‘is‘based‘on‘Johnson‘s‘experiment‘on‘the‘effects‘of‘trematode‘parasites‘on‘tadp
oles.‘Suppose‘that‘60‘tadpoles‘are‘exposed‘to‘32‘parasites‘per‘tadpole.‘Based‘on‘the‘results
‘of‘the‘figure,‘about‘how‘many‘tadpoles‘would‘you‘expect‘to‘survive‘to‘metamorphosis?
a. 12
b. 25
c. 40
d. 58
Answer:’b
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘3.‘Applying
10. Refer‘to‘the‘figure.
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
The‘figure‘is‘based‘on‘Kiesecker‘s‘field‘experiments‘testing‘the‘effects‘of‘parasites‘and‘pesticid
es‘on‘frogs.‘Which‘statement‘is‘the‘most‘valid‘interpretation‘of‘the‘results?
a. Exposure‘to‘parasites‘was‘necessary‘for‘the‘frogs‘to‘become‘deformed.
b. All‘frogs‘exposed‘to‘parasites‘were‘deformed.
c. Exposure‘to‘pesticides‘was‘necessary‘for‘frogs‘to‘become‘deformed.
d. Exposure‘to‘pesticides‘had‘no‘effect‘on‘the‘percentage‘of‘frogs‘that‘became‘deformed.
Answer:’a
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
Learning’Objective:’Not’aligned
Bloom’s’Level:‘4.‘Analyzing
11. Refer‘to‘the‘figure.
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
The’figure’is’based’on’studies’of’the’effects’of’pesticides’on’the’tadpole’immune’system.’In’a
’laboratory’experiment,’wood’frog’(Rana’sylvatica)’tadpoles’were’exposed’to’low’or’high’c
oncentrations’of’a’pesticide,’and’then’Ribeiroia’parasites.’The’tadpoles’were’then’examine
d’for’(A)’numbers’of’eosinophils’and’(B)’numbers’of’Ribeiroia’cysts.’Error’bars’show’one’S
E’of’the’mean.’Which’statement’is’supported’by’the’evidence’shown’in’the’figure?
a. Tadpoles‘exposed‘to‘high‘levels‘of‘pesticides‘had‘more‘cysts‘per‘tadpole‘than‘those‘e
xposed‘to‘low‘levels‘of‘pesticides.
b. Tadpoles‘exposed‘to‘pesticides‘had‘fewer‘eosinophils‘than‘those‘not‘exposed‘to‘p
esticides.
c. The‘number‘of‘cysts‘per‘tadpole‘was‘similar‘in‘the‘solvent‘control‘and‘low‘pesticide‘g
roups.
d. Pesticides‘decreased‘eosinophils‘more‘when‘tadpoles‘were‘exposed‘to‘high‘con
centrations‘of‘pesticides‘than‘when‘they‘were‘exposed‘to‘low‘concentrations.‘Ans
wer:‘b
Textbook’Reference:’1.1’Events’in’the’natural’world’are’interconnected.
©‘2021‘Oxford‘University‘Press
mynursytest.store
,DOWNLOAD’THE’Test’Bank’for’Ecology’5th’Edition’Bowman
Learning’Objective:’Not’aligned
Bloom’s’Level:‘4.‘Analyzing
12. Refer‘to‘the‘figure.
The’figure’is’based’on’studies’of’the’effects’of’pesticides’on’the’tadpole’immune’system.’In’a
’laboratory’experiment,’wood’frog’(Rana’sylvatica)’tadpoles’were’exposed’to’low’or’high’c
oncentrations’of’a’pesticide,’and’then’Ribeiroia’parasites.’The’tadpoles’were’then’examine
d’for’(A)’numbers’of’eosinophils’and’(B)’numbers’of’Ribeiroia’cysts.’Error’bars’show’one’S
E’of’the’mean.’Compared’with’the’control’group,’the’frogs’exposed’to’low’concentrations’o
f’pesticides’showed’an’increase’
percent’in’the’number’of’eosino
phils.
a. 18
b. 32
c. 55
d. 78
©‘2021‘Oxford‘University‘Press
mynursytest.store
