Human Population Growth Quiz Questions And Answers
- 1.
Which of the following is/are beneficial qualities of biodiversity for humans?
- A.
Food
- B.
Drugs and medicines
- C.
Ecological services
- D.
Aesthetics
- E.
All of the above
Correct Answer
E. All of the above -
- 2.
Endocrine disruptors
- A.
Disrupt normal hormone functions
- B.
Stimulate growth during embryonic development
- C.
Repress the skeletal system
- D.
Alter genetic material
- E.
Disrupt all cells
Correct Answer
A. Disrupt normal hormone functions -
- 3.
______ percent of adult Americans are overweight.
- A.
64
- B.
80
- C.
40
- D.
23
- E.
90
Correct Answer
A. 64 -
- 4.
Of all the old growth forests that stood in the United States before European settlement, how much remains today?
- A.
About 35 percent
- B.
Less than 10 percent
- C.
About 15 percent
- D.
Slightly over 25 percent
- E.
About 50 percent
Correct Answer
B. Less than 10 percent -
- 5.
The major cause of Americans being overweight is our diet contains
- A.
Too much protein
- B.
Too much fat
- C.
Too much sugar and carbohydrates
- D.
Too much protein and too much fat
- E.
Too many vegetables
Correct Answer
C. Too much sugar and carbohydrates -
- 6.
Legumes are plants whose roots contain bacteria that can fix _______ and naturally fertilize the plant
- A.
Nitrogen
- B.
All of these are correct
- C.
Potassium
- D.
Oxygen
- E.
Phosphorus
Correct Answer
A. Nitrogen -
- 7.
World deserts are....
- A.
Decreasing as world climate becomes wetter
- B.
About the same in area but have many threatened species of plants
- C.
Increasing because of logging and grazing
- D.
Increasing because of irrigation
- E.
Decreasing because of massive reforestation
Correct Answer
C. Increasing because of logging and grazing -
- 8.
A species in imminent danger of extinction is classified by the U.S. Endangered Species Act as.....
- A.
Endangered
- B.
Threatened
- C.
At risk
- D.
Vulnerable
- E.
Valuable
Correct Answer
A. Endangered -
- 9.
Large forested areas around the world are at risk from
- A.
Replanting cut forests with monoculture stands
- B.
Insect attacks worsened by warming temperatures
- C.
All of these
- D.
Super fires resulting from warming in the Boreal forest
- E.
Over harvesting in the tropics
Correct Answer
C. All of these -
- 10.
The “Phylogenetic Tree of life” shows
- A.
Bacteria and Eukaryota (higher plants and animals) are the same thing
- B.
That all species alive today evolved from a single cell AND Bacteria and Eukaryota (higher plants and animals) are the same thing
- C.
Imagined relationships between and among species
- D.
That all species alive today evolved from a single cell
- E.
There is no explanation for the mysteries of life
Correct Answer
D. That all species alive today evolved from a single cell -
- 11.
Pesticide resistance occurs in __________ species.
- A.
Plant pathogen
- B.
Insect
- C.
Weed
- D.
Weed and insect
- E.
All of these are correct
Correct Answer
E. All of these are correct -
- 12.
Tobacco is the single largest cause of death each year with
- A.
440,000 deaths in 2011, in the U.S.
- B.
100,000 deaths from second hand smoke in 2011, in the U.S.
- C.
5 million deaths in 2011, worldwide
- D.
All of these
- E.
Is declining in the U.S., but is more common in southeastern states
Correct Answer
D. All of these -
- 13.
The energy (kcal) inputs required to produce
- A.
375 kcal of food energy in meat and corn is about the same
- B.
375 kcal of food energy in meat and corn is about the same and Corn and meat is largely from the energy costs of transportation
- C.
Corn and meat is largely from the energy costs of transportation
- D.
375 kcal of food energy in meat is more than four times the energy to produce 375 kcal of food energy in corn
- E.
To be sustainable, energy inputs for food production must be less than the energy contained in the food
Correct Answer
D. 375 kcal of food energy in meat is more than four times the energy to produce 375 kcal of food energy in corn -
- 14.
The three crops that humans rely on for the majority of nutrients and calories are
- A.
Potatoes, wheat and quinoa
- B.
Wheat, rice and maize (corn)
- C.
Maize (corn), oats and kale
- D.
Barley, oats and soy beans
- E.
Oats, beans and sorghum
Correct Answer
B. Wheat, rice and maize (corn) -
- 15.
Which of the following has been used historically to reduce agricultural pests?
- A.
Sulfur
- B.
Spices
- C.
Arsenic
- D.
Alcohol fermentation
- E.
All of these methods have been used as pest control
Correct Answer
E. All of these methods have been used as pest control -
- 16.
Pesticide resistance occurs when a population of pests
- A.
Is completely wiped out by the pesticide chemicals
- B.
Genetically changes (through natural selection) and is no longer affected by the chemicals
- C.
Is not affected by chemicals because the pesticide chemicals do not break down in the environment
- D.
Becomes too numerous for chemicals to control
- E.
Grows extremely large because of chemical misapplications
Correct Answer
B. Genetically changes (through natural selection) and is no longer affected by the chemicals -
- 17.
Which of the following diseases cannot be decreased with insecticides?
- A.
West Nile Virus
- B.
Yellow Fever
- C.
Sleeping sickness
- D.
Malaria
- E.
Bronchitis
Correct Answer
E. Bronchitis -
- 18.
An effective way to measure soil erosion in a region is to measure the
- A.
Bushels of corn per acre
- B.
Amount of dust in the air
- C.
Distance the dust travels
- D.
The depth of crop fields
- E.
Sediment load of rivers
Correct Answer
E. Sediment load of rivers -
- 19.
The total number of living species is probably
- A.
At least 300 million
- B.
Between 75 and 95 million
- C.
Between 3 and 20 million
- D.
About 450,000
- E.
Between 500,000 and 1 million
Correct Answer
C. Between 3 and 20 million -
- 20.
Fuelwood harvests
- A.
Make up about 10% of timber harvests
- B.
Make up only 1 percent of industrial timber harvests
- C.
Make up about 25% of all wood harvests
- D.
Are mainly in developed countries
- E.
Make up about 50% of all wood harvests
Correct Answer
E. Make up about 50% of all wood harvests -
- 21.
The objective of a species recovery plan is to
- A.
Protect the species to aid other organisms and resources in the ecosystem
- B.
Interbreed threatened species with common species
- C.
Invest corporate capital in species maintenance
- D.
Study the species for a better understanding of its role in the biological community
- E.
Increase an endangered species population until it is no longer endangered
Correct Answer
E. Increase an endangered species population until it is no longer endangered -
- 22.
Bioaccumulation is a term that describes the way cells
- A.
Grow as they absorb all types of molecules
- B.
Selectively absorb and store molecules
- C.
Respire and photosynthesize
- D.
Fight cancer
- E.
Accumulate water as fat
Correct Answer
B. Selectively absorb and store molecules -
- 23.
Nitrogen applied as fertilizer
- A.
Is increasing on a global scale along with increases crop yields
- B.
Is no longer increasing on a global scale because of efficient irrigation
- C.
Is expensive and therefore used sparingly
- D.
Is tapering off because of genetic engineering of crops
Correct Answer
A. Is increasing on a global scale along with increases crop yields -
- 24.
Hazardous substances ______________ while toxins are ______________.
- A.
Are usually of concern at all concentrations; dangerous substances
- B.
None of these is correct
- C.
Are poisonous substances; also poisonous substances
- D.
React with specific cell components to kill cells; poisonous substances
- E.
Are dangerous substances; poisonous substances
Correct Answer
E. Are dangerous substances; poisonous substances -
- 25.
Chlorinated hydrocarbons have ____ toxicity for sensitive organisms and remain in the soil for a _______ time.
- A.
Low; long
- B.
Medium; long
- C.
High; long
- D.
High; short
- E.
Low; short
Correct Answer
C. High; long -
- 26.
Soil formation and water purification are examples of _________ based on the biodiversity that benefit humans.
- A.
Geological cycles
- B.
Health benefits
- C.
Availability of food
- D.
Aesthetic benefits
- E.
Ecological services
Correct Answer
E. Ecological services -
- 27.
An "Exotic" species is another word for
- A.
Desirable species
- B.
Beautiful species
- C.
Tropical species
- D.
Foreign, introduced species
- E.
Rare species
Correct Answer
D. Foreign, introduced species -
- 28.
Rotational grazing allows grazing livestock to
- A.
Use the most fertile pastures continuously
- B.
Use only the most nutritious plants in a pasture
- C.
Produce more young animals with less range
- D.
Use a small area for a short time
- E.
Depend more on domestic pastures
Correct Answer
D. Use a small area for a short time -
- 29.
A threatened species is
- A.
Is extinct in certain localities
- B.
Faces extinction in most of their natural range
- C.
Already extinct
- D.
Faces extinction only in the distant future
- E.
Faces extinction n the near future
Correct Answer
E. Faces extinction n the near future -
- 30.
Producing meat results in
- A.
Use of large amounts of fossil fuels to grow crops and produce meat
- B.
All of these
- C.
Heavy use of antibiotics to prevent spread of diseases in crowded livestock
- D.
Overcrowded feed lots for livestock AND Heavy use of antibiotics to prevent spread of diseases in crowded livestock
- E.
Overcrowded feed lots for livestock
Correct Answer
B. All of these -
- 31.
High responder crops of the green revolution produce tremendous yields
- A.
With primitive farming techniques and no chemical use
- B.
When given high amounts of energy inputs including fertilizers, pesticides and irrigation
- C.
Even in severe drought conditions
- D.
In all conditions where standard crops fail
- E.
Even in severe drought conditions and with primitive farming techniques and no chemical use
Correct Answer
B. When given high amounts of energy inputs including fertilizers, pesticides and irrigation -
- 32.
Individuals represented by the right end of a dose/response curve are ____________ to the chemical.
- A.
Relatively insensitive
- B.
Relatively sensitive
- C.
Very sensitive
- D.
About average in sensitivity
- E.
Very insensitive
- F.
Very insensitive
Correct Answer
F. Very insensitive -
- 33.
Inorganic pesticides are generally
- A.
Not very toxic and break down soon in the environment
- B.
Highly toxic and remain in the soil for a long time
- C.
Toxic to insects but safe for humans
- D.
Moderately toxic and remain in the soil for a short period
- E.
Moderately toxic and break down soon in the environment
Correct Answer
B. Highly toxic and remain in the soil for a long time -
- 34.
When compared to sand and gravel, small soil particles (clay and silt) have ______ pore space.
- A.
Significantly more
- B.
About the same
- C.
More
- D.
It depends on the other minerals that are present
- E.
Less
Correct Answer
E. Less -
- 35.
Individuals represented by the middle of a dose/response curve are ______________ for that population.
- A.
Very sensitive
- B.
Relatively sensitive
- C.
Relatively insensitive
- D.
Very insensitive
- E.
About average in sensitivity
Correct Answer
E. About average in sensitivity -
- 36.
The stratified horizontal layers of soils are called soil
- A.
Horizons
- B.
Textures
- C.
Classifications
- D.
Types
- E.
Profiles
Correct Answer
A. Horizons -
- 37.
A broadspectrum biocide is designed to kill
- A.
A wide range of living organisms
- B.
Targets weed plants
- C.
Specific multicellular organisms
- D.
Pathogenic microbes but not plants or animals
- E.
Specific unicellular organisms
Correct Answer
A. A wide range of living organisms -
- 38.
Logistic growth rates are those in which a population
- A.
Overshoots and dies back repeatedly
- B.
Grows at a constant rate of increase per unit
- C.
Grows very slowly when conditions are good and when conditions are not optimal
- D.
Grows rapidly when conditions are good, then slows as it approaches carrying capacity
- E.
Remains significantly below carrying capacity
Correct Answer
D. Grows rapidly when conditions are good, then slows as it approaches carrying capacity -
- 39.
The process of cellular respiration ____________
- A.
Eliminates the need for enzymes in metabolism
- B.
Does not occur in primary producers
- C.
Does not occur in detritivores
- D.
Releases energy for metabolism from chemical bonds of molecules such as glucose
- E.
Helps primary producers store energy accumulated by chloroplasts
Correct Answer
D. Releases energy for metabolism from chemical bonds of molecules such as glucose -
- 40.
The second law of thermodynamics states that as energy moves through different forms and systems it gradually
- A.
Dissipates and becomes unavailable
- B.
Becomes more concentrated
- C.
Accumulates in the form of electricity
- D.
Changes from kinetic to potential energy
- E.
Disappears and is lost forever
Correct Answer
A. Dissipates and becomes unavailable -
- 41.
Exponential growth would be represented by a ____ curve?
- A.
S Shaped
- B.
Linear
- C.
Straight
- D.
Bimodal
- E.
J Shaped
Correct Answer
E. J Shaped -
- 42.
The first law of thermodynamics and the law of conservation of matter are similar in that
- A.
The first law of thermodynamics and the law of conservation of matter are not similar
- B.
Under normal circumstances energy and matter are destroyed as they pass through biological systems
- C.
Both energy and matter flow in a oneway path through biological systems
- D.
Both energy and matter must be recycled through biological systems
- E.
Under normal circumstances both energy and matter can change form but are not created or destroyed
Correct Answer
E. Under normal circumstances both energy and matter can change form but are not created or destroyed -
- 43.
Barrier islands are formed of _________________
- A.
Wind and wave-deposited sand
- B.
Coral deposits
- C.
Volcanic debris
- D.
Coral reef formations
- E.
Shale left by estuaries
Correct Answer
A. Wind and wave-deposited sand -
- 44.
Human population growth most closely resembles
- A.
Carrying capacity geometric increase
- B.
Irruptive growth
- C.
Limited growth
- D.
S-Shaped
- E.
J-Shaped growth curve
Correct Answer
E. J-Shaped growth curve -
- 45.
Nitrogen is an essential component of __________________
- A.
The hydrologic cycle
- B.
Carbohydrates
- C.
All organic molecules
- D.
Sugars, the product of photosyntheis
- E.
Amino acids and proteins
Correct Answer
E. Amino acids and proteins -
- 46.
Historical evidence shows that plagues and diseases
- A.
Affect relatively few people in a population
- B.
Affect population growth for many centuries
- C.
Cause only minor or temporary setbacks in global population growth trends
- D.
Are highly effective at slowing population growth
- E.
Are devastating to human population growth
Correct Answer
C. Cause only minor or temporary setbacks in global population growth trends -
- 47.
Evolution occurs as a result of __________________________
- A.
A population's physiological modification
- B.
Better survival or higher reproduction rates by individuals within a species that have a specific characteristic
- C.
Environmental change that forces adaptation by an organism
- D.
An individual's physiological modification
- E.
The discovery of a desirable characteristic in a population
Correct Answer
B. Better survival or higher reproduction rates by individuals within a species that have a specific characteristic -
- 48.
Deciduous forests
- A.
Are not useful commercially
- B.
Include all tree species adapted to extremely cold climates
- C.
Have trees that shed their leaves seasonally
- D.
Have trees that bear seeds in cones
- E.
Are not found in the African continent
Correct Answer
C. Have trees that shed their leaves seasonally -
- 49.
A cell is
- A.
Made entirely of DNA
- B.
The smallest molecule exhibiting organic characteristics
- C.
A small organic compound made entirely of carbon, water and nitrogen
- D.
The smallest unit in which life processes go on
- E.
A building block for DNA
Correct Answer
D. The smallest unit in which life processes go on -
- 50.
Darwin’s book, Origin of Species explained _________________
- A.
Survival of fittest
- B.
All of these options
- C.
Geographic isolation
- D.
Adaptation
- E.
Natural selection
Correct Answer
B. All of these options -
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Mar 20, 2022Quiz Edited by
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