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Ninth Grade (Grade 9) Biotic and Abiotic Questions

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Grade 9 Biotic and Abiotic
Which of the following 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
All of the following are considered to be abiotic factors EXCEPT
  1. moisture
  2. air currents
  3. predators
  4. temperature
  5. light
Grade 9 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Which of these refers to the biotic factors of an ecosystem?
  1. The idea of two dissimilar organisms living together, as in mutualism, commensalism, amensalism, or parasitism.
  2. Any living part of an environment.
  3. A representation of the number of individual organisms in each trophic level of an ecosystem.
  4. An organism that eats only meat.
Grade 9 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Which of these describes the abiotic factors of an ecosystem?
  1. An umbrella term describing 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, isolated from each other by a matrix of dissimilar habitats, rather than just the patterns of spatial arrangement of the remaining habitat.
  2. A species that historically lived in one place, but that has been moved to a new geographic location, due to human interference.
  3. An environmental factor that tends to limit population size.
  4. The nonliving physical or chemical conditions of an environment.
Grade 9 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Aquatic ecosystems are divided into zones based on two basic limiting factors:                         
  1. nutrients and sunlight
  2. nutrients and oxygen
  3. temperature and sunlight
  4. temperature and oxygen
Grade 9 Biotic and Abiotic
Grade 9 Biotic and Abiotic
Which example shows a relationship between both 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 9 Biotic and Abiotic
Which of the following is needed for an organism's survival?
  1. Communication
  2. Shelter
  3. Technology
  4. Sight
Grade 9 Biotic and Abiotic
Which of the following is NOT a characteristic of life?
  1. Movement
  2. Response to a stimulus
  3. Energy Use
  4. Reproduction
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
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