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Biotic and Abiotic Questions - All Grades

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Grade 9 Biotic and Abiotic
Which situation is a biotic factor operating within an ecosystem?
  1. the kind of climate in a given region
  2. carnivores that eat other animals
  3. the concentration of hydrogen gas in the air
  4. the rate of water flow in a body of water
Grade 9 Biotic and Abiotic
A certain plant needs moisture, carbon dioxide, oxygen light, and minerals to survive. This scenario shows that a living organism depends on
  1. biotic factors.
  2. abiotic factors.
  3. symbiotic relationships.
  4. carnivore-herbivore relationships.
Grade 9 Biotic and Abiotic
All are considered to be abiotic factors EXCEPT
  1. moisture.
  2. air currents.
  3. predators.
  4. temperature.
  5. light.
Grade 9 Biotic and Abiotic
What is a biosphere?
  1. any individual living thing
  2. all organisms and the parts of Earth where they exist
  3. a chemical process
Grade 9 Biotic and Abiotic
Grade 10 Biotic and Abiotic
Which is a biotic factor?
  1. predator
  2. water
  3. temperature
  4. pH
Grade 9 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Which of these phrases describes the biotic factors of an ecosystem?
  1. two dissimilar organisms living together, as in mutualism, commensalism, amensalism, or parasitism
  2. any living part of an environment
  3. the number of individual organisms in each trophic level of an ecosystem
  4. an organism that eats only meat
Grade 9 Biotic and Abiotic
Which of these phrases describes the abiotic factors of an ecosystem?
  1. an environmental factor that tends to limit population size
  2. the nonliving physical or chemical conditions of an environment
  3. a species that lived in one place but that has moved to a new geographic location because of human interference
  4. the complete process by which habitat loss results in the division of large, continuous habitats into a greater number of smaller patches of lower total area
Grade 6 Biotic and Abiotic
Grade 10 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Which example shows a relationship between an abiotic and biotic factor in an ecosystem?
  1. An insect is food for a salmon.
  2. Water carries a rock downstream.
  3. A tree removes a gas from the air.
  4. A flower makes food for a butterfly.
Grade 11 Biotic and Abiotic
The amount of biomass produced in a given area during a given amount of time is
  1. productivity.
  2. biodiversity.
  3. ecology.
  4. sustainability.
Grade 10 Biotic and Abiotic
What is the part of earth where life exists?
  1. biome
  2. habitat
  3. population
  4. biosphere
Grade 11 Biotic and Abiotic
Which of these is a biotic factor?
  1. algae
  2. rocks
  3. sea water
  4. sand
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