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Ninth Grade (Grade 9) Ecology Questions

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Grade 9 Food Chains and Webs
Grade 9 Conservation and Biodiversity
If fish reproduce at a slower rate than the rate at which they are caught, how will their population change?
  1. It will decrease
  2. The fish will swim to other bodies of water
  3. It will not change
  4. It will increase dramatically
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 Conservation and Biodiversity
Grade 9 Communities, Populations, and Ecosystems
The study of organisms' interactions with their surroundings is
  1. abiotic
  2. ecology
  3. sociology
  4. microbiology
  5. geology
Grade 9 Food Chains and Webs
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Which of the following is NOT considered to be a density-dependent factor?
  1. Competition
  2. Predation
  3. Commensalism
  4. Parasitism and disease
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 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Biotic and Abiotic
Grade 9 Biogeochemical Cycles
Grade 9 Biogeochemical Cycles
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