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Eighth Grade (Grade 8) Ecology Questions

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Grade 8 Food Chains and Webs
Grade 8 Communities, Populations, and Ecosystems
Grade 8 Communities, Populations, and Ecosystems
Grade 8 Conservation and Biodiversity
Grade 8 Biogeochemical Cycles
Which cycle most likely includes sunlight, photosynthesis, and respiration?
  1. water cycle
  2. carbon cycle
  3. oxygen cycle
  4. nitrogen cycle
Grade 8 Biotic and Abiotic
Predators can be classified as what type of influence?
  1. living
  2. nonliving
  3. genetic
  4. inorganic
Grade 8 Biotic and Abiotic
Select the letter of EACH choice that is a biotic factor in a prairie dog ecosystem.
  1. grass and other plants that the prairie dog eats
  2. hawks, ferrets, and other animals that hunt prairie dogs
  3. the soil that provides the prairie dog with a home
  4. worms, fungi, and bacteria that also live in the soil
Grade 8 Communities, Populations, and Ecosystems
What are the five levels of environmental organization from largest to smallest?
  1. biosphere, ecosystem, community, population, organism
  2. ecosystem, biosphere, population, organism, community
  3. biosphere, population, ecosystem, community, organism
  4. biosphere, ecosystem, population, community, organism
Grade 8 Food Chains and Webs
Grade 8 Food Chains and Webs
Grade 8 Conservation and Biodiversity
What is extinction?
  1. when a breed of a species ends
  2. when an animal is the last of its kind
  3. when the species of an organism ends
  4. none of the above
Grade 8 Food Chains and Webs
In a deciduous forest insects, birds, rodents, and deer are known as the
  1. tertiary consumers.
  2. secondary consumers.
  3. primary consumers.
  4. none of the above
Grade 8 Food Chains and Webs
Select the letter of EACH sentence that is true about a food web.
  1. Producers are at the top of the food web.
  2. All first level consumers are carnivores.
  3. Second level consumers may be carnivores or omnivores.
  4. An organism may play more than one role in a food web.
Grade 8 Food Chains and Webs
A secondary consumer would be
  1. A meat-eater that eats primary consumers
  2. A meat-eater that eats tertiary consumers
  3. A meat-eater that eats autotrophs
  4. A meat-eater that eats secondary consumers
Grade 8 Food Chains and Webs
All organisms in a specific habitat comprise
  1. an ecosystem
  2. a community
  3. a population
  4. the domain Eukarya
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