Want to see correct answers?
Login or join for free!
  Biology Worksheets
Looking for Biology worksheets?
Check out our pre-made Biology worksheets!
Share/Like This Page
Filter By Grade

Ninth Grade (Grade 9) Ecology Questions

You can create printable tests and worksheets from these Grade 9 Ecology questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

Previous Page 1 of 22 Next
Grade 9 Food Chains and Webs
Which organisms can be found at the first, or lowest, trophic level?
  1. herbivores
  2. carnivores
  3. heterotrophs
  4. autotrophs
Grade 9 Food Chains and Webs
Grade 9 Communities, Populations, and Ecosystems
Grade 9 Communities, Populations, and Ecosystems
Every member of the same species that inhabits a region makes up a
  1. community.
  2. habitat.
  3. ecosystem.
  4. population.
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 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 Communities, Populations, and Ecosystems
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 Conservation and Biodiversity
Which description characterizes a stable ecosystem?
  1. one type of organism
  2. two types of organisms
  3. at least one type of plant and one type of animal
  4. a wide variety of organisms
Grade 9 Conservation and Biodiversity
A species that impacts the survival rates of other species in an ecosystem is a(n)
  1. endangered species.
  2. keystone species.
  3. niche species.
  4. extinct species.
Grade 9 Biogeochemical Cycles
The recycling of chemical elements throughout an ecosystem is
  1. energy.
  2. a trophic level.
  3. the phosphorus cycle.
  4. the biogeochemical cycle.
Grade 9 Conservation and Biodiversity
Grade 9 Food Chains and Webs
Grade 9 Food Chains and Webs
Grade 9 Communities, Populations, and Ecosystems
Which is NOT considered to be a density-dependent factor?
  1. competition
  2. predation
  3. commensalism
  4. parasitism and disease
Previous Page 1 of 22 Next
You need to have at least 5 reputation to vote a question down. Learn How To Earn Badges.