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Ninth Grade (Grade 9) Ecology Questions

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Grade 9 :: Biotic and Abiotic by caryocs
Which is a biotic factor operating within an ecosystem?
  1. the type of climate in a given region
  2. the carnivores that consume other animals
  3. the amount of helium gas in the air
  4. the rate of flow of water in a river
Grade 9 :: Food Chains and Webs by der1228
Grade 9 :: Communities, Populations, and Ecosystems by TeacherClara
Grade 9 :: Food Chains and Webs by swiftadam81
What is the ultimate source of energy in any food chain?
  1. producers
  2. consumers
  3. decomposers
  4. the sun
Grade 9 :: Biogeochemical Cycles by sackjd
Which biogeochemical cycle is pictured below?
Carbon Cycle With Text Labels
  1. carbon
  2. water
  3. nitrogen
  4. phosphorus
Grade 9 :: Communities, Populations, and Ecosystems by PMISIAS
Which of these factors increases the size of a population?
  1. birthrate
  2. emigration
  3. death rate
  4. carrying capacity
Grade 9 :: Food Chains and Webs by swiftadam81
What is an herbivore?
  1. eats plants
  2. eats meats
  3. eats meats and plants
  4. decomposes organic matter
Grade 9 :: Food Chains and Webs by der1228
Organisms in the lowest trophic level of an ecosystem are always
  1. herbivores
  2. carnivores
  3. heterotrophs
  4. autotrophs
Grade 9 :: Conservation and Biodiversity by chowe
Grade 9 :: Food Chains and Webs by swiftadam81
Why do the populations of each trophic level in this biomass pyramid keep getting smaller as the levels rise up?
  1. because the animals are larger at the top
  2. becuase the enery is decreasing going up
  3. because they organisms at the top are eaten by the organisms below
  4. It is a random occurance
Grade 9 :: Conservation and Biodiversity by chowe
If fish are caught faster than they can breed, the population will
  1. decrease
  2. move to other waters
  3. remain the same
  4. increase
Grade 9 :: Biogeochemical Cycles by swiftadam81
Which biogeochemical cycle is pictured below?
Carbon Cycle With Text Labels
  1. carbon cycle
  2. water cycle
  3. nitrogen cycle
  4. phosphorus cycle
Grade 9 :: Food Chains and Webs by elfqueen61
An organism is classified as a carnivore. Which is the correct classification?
  1. Heterotroph, Decomposer
  2. Heterotroph, Consumer
  3. Autotroph, Composer
  4. Autotroph, Consumer
  5. Autotroph, Heterotroph
Grade 9 :: Food Chains and Webs by danderlik
Grade 9 :: Communities, Populations, and Ecosystems by bfox2744
Grade 9 :: Communities, Populations, and Ecosystems by swiftadam81
Which is the correct order of the levels of organization from smallest to largest?
  1. species, community, population, biome, ecosystem, biosphere
  2. species, population, community, ecosystem, biome, biosphere
  3. population, species, community, ecosystem, biosphere, biome
  4. community, population, community, ecosystem, biome, biosphere
Grade 9 :: Communities, Populations, and Ecosystems by PMISIAS
Grade 9 :: Communities, Populations, and Ecosystems by swiftadam81
What is ecology?
  1. study of habitats
  2. study of life
  3. study of interations between organisms and their environment
  4. study of the environment
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