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Ecology Questions - All Grades

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Grade 4 Biomes
One ecosystem is different from another by its kinds and amounts of
  1. soil, water, buildings, and humans.
  2. carbon dioxide, oxygen, water, and soil.
  3. animals, oxygen, plant life, and pollution.
  4. sunlight, rainfall, temperature, and species types.
Grade 9 Communities, Populations, and Ecosystems
An ocean, a forest, and a grassy meadow are each examples of a complete                .
  1. biosphere
  2. community
  3. ecosystem
  4. population
Grade 8 Food Chains and Webs
What is the purpose of a food chain?
  1. shows what organisms eat which foods
  2. shows the importance of the Sun's energy
  3. depicts the predator/prey relationships between organisms
  4. shows the transfer of energy between trophic levels
Grade 8 Conservation and Biodiversity
The illegal killing or removal of wildlife from their habitats is                      .
  1. poaching
  2. habitat destruction
  3. habitat fragmentation
  4. deforestation
Grade 4 Biotic and Abiotic
Which of the following best describes the types of things that make up an ecosystem?
  1. all living and nonliving things
  2. only living things
  3. humans and animals
  4. plants only
Grade 11 Communities, Populations, and Ecosystems
A species that enters an environment where it has not lived before is a(n)                   .
  1. endangered species
  2. invasive species
  3. predator
  4. threatened species
Grade 6 Food Chains and Webs
Plants are necessary for life on Earth.
  1. True
  2. False
Grade 5 Food Chains and Webs
Imagine that pollution caused all the plants in an aquatic food chain to die. Would this affect the population of the largest fish?
  1. Yes, because the largest fish need to eat plants to supplement their diet.
  2. Yes, because all the food energy in the chain begins with the plants.
  3. No, because the largest fish are big enough to survive a change in the ecosystem.
  4. No, because only the smallest fish depend on the plants for survival.
Grade 5 Communities, Populations, and Ecosystems
What will animals likely do when its ecosystem was destroyed?
  1. stay there.
  2. find a new place to live.
  3. live on water.
  4. get revenge.
Grade 9 Biogeochemical Cycles
Bacteria turn atmospheric nitrogen into a form of nitrogen usable by plants through the process of                  .
  1. bacteria fixation
  2. nitrogen fixation
  3. denitrogenation
  4. nitrogenation
Grade 5 Food Chains and Webs
What organism feeds only on plants?
  1. carnivore
  2. herbivore
  3. omnivore
  4. detritivore
Grade 5 Biotic and Abiotic
Which is a biotic factor that affects the size of a population in a specific ecosystem?
  1. average temperature
  2. type of soil
  3. number and kinds of predators
  4. concentration of oxygen
Grade 10 Conservation and Biodiversity
The declining number and variety of the species in an area is                     .
  1. loss of biodiversity
  2. supply and demand
  3. a developed nation
  4. sustainability
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