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SLCC ENSC 1000 Exam 2 Questions With Complete Solutions
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SLCC ENSC 1000 Exam 2 Questions With Complete Solutions Crude Birth Rate Number of births in a year per thousand. (Not adjusted for population characteristics such as number of women of childbearing age.) Total Fertility Rate number of children born to an average woman in a population during ...

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  • October 13, 2024
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  • 2024/2025
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SLCC ENSC 1000 Exam 2 Questions With
Complete Solutions

Crude Birth Rate Number of births in a year per thousand. (Not adjusted for population

characteristics such as number of women of childbearing age.)




Total Fertility Rate number of children born to an average woman in a population during

her life




Zero Population Growth Occurs when births plus immigration in a population equal

deaths plus emigration. ZPG Is a rate of 2.1 children per couple, not 2.0, because some people do

not have children and some children do not survive to reproductive age.




Crude Death Rate The number of deaths per year per 1,000 people.




Natural Increase crude birth rate minus crude death rate




Total growth rate includes immigration, emigration, births and deaths.




the primary cause of most population growth in last 300 years. Declining mortality

, SLCC ENSC 1000 Exam 2 Questions With
Complete Solutions

Family Planning allows couples to determine the number and spacing of their children




Health a state of complete physical, mental, and social well-being (not just the absence of

disease or infirmity)




Disease an abnormal change in the body's condition that impairs physical or psychological

function




Disability-adjusted life years (DALYs) combine premature deaths and loss of healthy life

resulting from illness or disability




Pathogens disease-causing organisms. They include:-Viruses-Bacteria-Protozoans-

Parasitic worms including flukes




Antibiotics chemicals that kill or inhibit the growth of bacteria




Toxicology the study of poisons and their effects on living systems.

, SLCC ENSC 1000 Exam 2 Questions With
Complete Solutions

Dangerous chemicals are divided into two broad categories: Toxic and Other Hazards




Toxic chemicals known poisons that damage or kill cells/tissues




Other Hazards (chemicals) dangerous but not toxic




Ecotoxicology deals with the interactions, transformation, fate, and effects of natural and

synthetic chemicals in the biosphere.




Allergens substances that activate the immune system




Antigens substances that are recognized as foreign by white blood cells and stimulate the

production of specific antibodies




Antibodies proteins produced by our bodies that recognize and bind to foreign cells or

chemicals

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