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Environmental Biology

Matthew R. Fisher

Chapter 6

Environmental Hazards & Human Health - all with Video Answers

Educators

Chapter Questions

01:02

Problem 1

The pesticide DDT is an example of which one of the following?
A. Biological agent
B. Atomic agent
C. Chemical agent
D. Capricious agent
E. Inorganic agent

Narayan Hari
Narayan Hari
Numerade Educator
00:54

Problem 2

From the perspective of human health, malnutrition is important because it...
A. Causes the majority of birth defects
B. Is the primary source of teratogens for most children
C. is an important contributor to child mortality
D. Is the second leading cause of death from emerging disease
E. Increases the occurrence of infectious cancers

Aditya Sood
Aditya Sood
Numerade Educator
03:36

Problem 3

Antibiotic resistance in organisms is the result of what process?
A. Differentiation
B. Evolution
C. Emergence
D. Succession
E. Fixation

Jennifer Stoner
Jennifer Stoner
Numerade Educator
01:20

Problem 4

Which one of the following is an example of an emerging disease?
A. Malaria
B. Ebola
C. Cancer
D. Heart disease
E. Leukemia

Kamila Zakarian
Kamila Zakarian
Numerade Educator
09:55

Problem 5

"Effective dose $-50 \%$ " describes which one of the following?
A. The dose that results in $50 \%$ mortality
B. The dose the results in $50 \%$ survival
C. The dose that is $50 \%$ less than the lethal dose
D. The dose that results in a significant response in $50 \%$ of subjects
E. The dose that is $50 \%$ more than the minimal dose

Jan-Luka Fatras
Jan-Luka Fatras
Numerade Educator
00:49

Problem 6

You are working as an environmental toxicologist for the government. Your results indicate that a particular chemical causes birth defects. Which one of the following best describes the effects of this chemical?
A. Teratogen
B. Carcinogen
C. Mutagen
D. Endocrine disruptor
E. Neurotoxicant

Sam Limsuwannarot
Sam Limsuwannarot
Numerade Educator
07:02

Problem 7

Which one of the following is most directly associated with radon?
A. Radiation
B. Endocrine disruption
C. Birth defects
D. Biological agents
E. Biomagnification

Breanna Kloczkowski
Breanna Kloczkowski
Numerade Educator
01:43

Problem 8

Which one of the following is an example of bioremediation?
A. Adding chemical dispersants following an oil spill
B. Growing large colonies of bacteria to produce antibiotic chemicals
C. Mimicking the processes of natural in a laboratory or industrial context
D. Removing invasive species that are overpopulating an ecosystem
E. Using plants to remove toxic metals from soils following a mining operation

Courtney Burson
Courtney Burson
Numerade Educator
01:56

Problem 9

Which one of the following is not a naturally-occurring element that may be hazardous to human health?
A. Lead
B. Radon
C. Phthalate
D. Mercury
E. Arsenic

Danielle Ashley
Danielle Ashley
Numerade Educator
00:49

Problem 10

Which one of the following is not true regarding the "Love Canal Disaster"?
A. It involved the improper storage of chemical waste
B. It was one of several incidents that led to the creation of the Superfund
C. A school was built on the contaminated site
D. Many homes had to be evacuated due to contamination from various biological agents
E. Many people living in the year reported serious health problems

Eleanor Behling
Eleanor Behling
Numerade Educator