Chapter 9 - Environmental Health

What is the cause of malaria?

• a parasite transmitted by mosquitos

• a bacteria transmitted by ticks

• a virus transmitted by mosquitos

• a parasite transmitted by ticks

Match the following hazards

• Social

• lifestyle choices like smoking and diet

• Physical

• viruses, bacteria, and other organisms that cause disease.

• Chemical

• natural disasters

• Biological

• exposure to disinfectants, pesticides, and other toxic compounds

Which two (2) statements are true about dose-response curves for chemical toxicities?

• Low doses are often safer than high doses.

• All chemicals are toxic at a high enough concentration.

• High doses are usually less dangerous than low doses.

• Dose-response curves measure how quickly chemicals evaporate from the environment.

Tags

NGSS.HS-PS1-5

Which age group is generally most sensitive to chemicals?

• the elderly

• teenagers

• fetuses, infants, and children

• adults

Match the following

• Malaria

• The leading cause of death of all humans worldwide.

• Cardiovascular (heart) disease

• The leading cause of death among teenagers in the US

• Accidents

• A leading cause of death for children in many developing countries

Match the definitions

• Vector

• the study of disease in human populations

• Toxicity

• disease causing agents like bacteria, viruses, and parasites

• Epidemiology

• a measure of how harmful a substance is

• Pathogen

• a disease that has appeared in the human population for the first time

• Emerging disease

• disease carrying organisms, like mosquitoes and ticks

Which organization responds to emerging diseases in the United States?

• World Health Organization (WHO)

• United Nations (UN)

• Centers for Disease Control and Prevention (CDC)

• World Bank

Identify the three (3) reasons diseases emerge and spread more rapidly today:

• 
• 
• 
• 

Tags

NGSS.HS-ESS3-1

Select the region of the planet that has the highest risk for malaria.

Tags

NGSS.HS-LS4-5

NGSS.HS-LS2-6

NGSS.HS-LS2-2

Match the following

• Mutagens

• chemicals that affect the nervous system

• Allergens

• chemicals that cause genetic mutations

• Neurotoxin

• chemicals that over-activate the immune system

• Carcinogens

• cancer-causing chemicals

Tags

NGSS.HS-LS3-2