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Ninth Grade (Grade 9) Ecology Questions

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Grade 9 :: Food Chains and Webs by caryocs
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 :: Conservation and Biodiversity by chowe
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 :: 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 :: 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 :: Food Chains and Webs by danderlik
Grade 9 :: Communities, Populations, and Ecosystems by PMISIAS
Grade 9 :: Conservation and Biodiversity by chowe
A species that influences the survival of many other species in an ecosystem is called a(an)
  1. endangered species
  2. keystone species
  3. niche species
  4. extinct species
Grade 9 :: Food Chains and Webs by danderlik
What types of organisms contain the most potential energy?
  1. Consumers
  2. Producers
  3. Herbivores
  4. Carnivores
Grade 9 :: Communities, Populations, and Ecosystems by der1228
Grade 9 :: Communities, Populations, and Ecosystems by PMISIAS
All of the following are density dependent factors EXCEPT
  1. Competition
  2. Predation
  3. Commensalism
  4. Parasitism and disease
Grade 9 :: Biotic and Abiotic by sbeck
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 by TeacherClara
Which of the following is NOT an abiotic factor:
  1. moisture
  2. air currents
  3. predators
  4. temperature
  5. light
Grade 9 :: Communities, Populations, and Ecosystems by der1228
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