Are You A Demographer? Population Quiz
- 1.Which factor below is considered abiotic?
- A.
Plants
- B.
Animals
- C.
Fungi
- D.
Rocks
- 2.Which of the following are things that can limit a population?
- A.
Lack of entertainment
- B.
Lack of space
- C.
Excess trees
- D.
Excess land
- 3.Too many deer live in a state park. The deer are dying from starvation. What kind of limiting factor is this an example of?
- A.
Density dependent
- B.
Density independent
- C.
Biotic
- D.
Abiotic
- 4.What are two ways a population can shrink?
- A.
Births and move-ins
- B.
Deaths and move-outs
- C.
Births and move-outs
- D.
Deaths and move-ins
- 5.If an environment changes slowly over time, what will most likely happen to the species living in that environment?
- A.
The species will remain unchanged and continue to thrive
- B.
The species will change over many generations to suit the new environment
- C.
The species will become extinct
- D.
Individuals within the population will suddenly grow new physical adaptation
- 6.The place a particular species occupies within the community is also called a
- A.
Niche
- B.
Ecosystem
- C.
Biome
- D.
Population
- 7.Which ecosystem has a cold climate?
- A.
Tundra
- B.
Grassland
- C.
Tropical rain forest
- D.
Desert
- 8.Which ecosystem would most likely contain drought tolerant plants?
- A.
Tundra
- B.
Grassland
- C.
Tropical rain forest
- D.
Desert
- 9.Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
- 10.Which ecosystem covers about 75% of the Earth's surface.
- A.
Tundra
- B.
Desert
- C.
Marine
- D.
Estuary
- 11.In the rain forest, strangler figs (Ficus citrifolia) are vines that grow on top of existing trees. In time, the fig vine kills the existing tree. What type of relationship is this?
- A.
Mutualism
- B.
Commensalism
- C.
Parasitism
- D.
Predator/prey
- 12.A tick on a dog is an example of a _________________ relationship.
- A.
Mutualistic
- B.
Commensalistic
- C.
Parasitic
- D.
Predator/prey
- 13.How does predation help prey populations?
- A.
Predation naturally limits populations by preventing overcrowding and starvation
- B.
Predation does not help prey populations and is a form of parasitism
- C.
Predation encourages mutualistic relationships to develop
- D.
Predation artificially limits populations and only prevents overcrowding.
- 14.Hermit crabs live in shells that were abandoned by snails. This neither helps nor harms the snails. What type of relationship is this?
- A.
Mutualism
- B.
Commensalism
- C.
Parasitism
- D.
Predator/prey
- 15.Animals that eat both plants and other animals are
- A.
Herbivores
- B.
Carnivores
- C.
Omniores
- D.
Decomposers
- 16.The interactions between many food chains is a(n)
- A.
Food web
- B.
Trophic level
- C.
Abiotic factor
- D.
Ecological balance
- 17.In a deciduous forest, hundreds of dead leaves fall to the forest floor each autumn. Which group of organisms breaks down this tissue for food?
- A.
Herbivore
- B.
Omnivore
- C.
Carnivore
- D.
Saphrophyte
- 18.The bottom of the energy pyramid is made up of which kind of organism?
- A.
Producers
- B.
Primary consumers
- C.
Secondary consumers
- D.
Top consumers
- 19.Precipitation is an important part of the water cycle. What process drives precipitation?
- A.
Clouds form by evaporation of water vapor
- B.
Condensation of water vapor forms clouds. as the clouds become saturated, they release water as precipitation.
- C.
Condensation of water vapor forms clouds, and evaporation causes water in the cloud to fall as precipitation.
- D.
Air warms as it rises until convection currents force water vapor back down toward the surface as precipitation.
- 20.In the nitrogen cycle, bacteria
- A.
Convert nitrogen to nitrate
- B.
Convert nitrogen to animal protein
- C.
Convert nitrate to nitrogen
- D.
Convert nitrogen to plant protein
- 21.All metabolic processes are dependent on the presence of
- A.
Nitrogen
- B.
Oxygen
- C.
Freshwater
- D.
Carbon
- 22.How is carbon stored in the Earth?
- A.
When a living organism dies and its body becomes buried and compressed over time
- B.
In the living tissues of organisms and in the atmosphere
- C.
In rock strate where it is released by weathering in the form of phosphorous.
- D.
In the oceans
- 23.Plants use nitrogen to
- A.
Make sugar
- B.
Attract pollinators
- C.
Make proteins and nucleic acids
- D.
Transport water to their leaves
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