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Eleventh Grade (Grade 11) Ecology Questions

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Grade 11 Conservation and Biodiversity
Invasive species are
  1. usually not a threat to biodiversity
  2. rare in island habitats
  3. successful due to a lace of natural enemies
  4. often unable to compete effectively in the new environment
Grade 11 Conservation and Biodiversity
Grade 11 Conservation and Biodiversity
The primary impact of climate change on species diversity is expected to be
  1. an increased number of extreme weather events.
  2. an increased variability in weather.
  3. decreased precipitation worldwide.
  4. changes in available habitat because of changing temperatures.
Grade 11 Food Chains and Webs
What is the name for an organism that eats only plants?
  1. carnivore
  2. detrivore
  3. herbivvore
  4. omnivore
Grade 11 Biogeochemical Cycles

This question is a part of a group with common instructions. View group »

Grade 11 Communities, Populations, and Ecosystems
Grade 11 Biogeochemical Cycles

This question is a part of a group with common instructions. View group »

Which reservoir contains the most carbon?
  1. atmosphere
  2. deep oceans
  3. vegetation
  4. sediments
Grade 11 Food Chains and Webs
Grade 11 Biogeochemical Cycles
What is the role of nitrogen fixing bacteria in the nitrogen cycle?
  1. They create acid rain.
  2. They cause algal blooms.
  3. They make nitrogen into a more useful form.
  4. They move water through the environment.
Grade 11 Conservation and Biodiversity
In a biosphere reserve
  1. sustainable agriculture and tourism are permitted in different zones.
  2. human activities are allowed throughout the reserve.
  3. human activities are restricted to the central core of the reserve.
  4. no human activities are permitted in a biosphere reserve.
Grade 11 Conservation and Biodiversity
The Lacey Act
  1. provides protected habitats for a number of threatened species.
  2. forbids the interstate shipping of illegally harvested plants and animals.
  3. provides harvesting quotas and prevents overharvesting.
  4. prevents the wide spread of invasive species to the US.
Grade 11 Symbiosis
Grade 11 Communities, Populations, and Ecosystems
Which of these is a population?
  1. The total # of a particular species in an area
  2. All of the biotic and abiotic factors in an area
  3. All of the species in an area
  4. Made up of several ecosystems
Grade 11 Symbiosis
Which is true of parasitism?
  1. one organism benefits, the other is unaffected
  2. one organism benefits, the other is harmed
  3. one organism benefits, the other benefits more
  4. both organisms are harmed
Grade 11 Food Chains and Webs
In this food chain: plants ----mouse----snake---hawk, what might happen to the population of mice if the snakes are removed from the ecosystem?
  1. population will decrease
  2. population will increase
  3. population will stay the same
  4. it's impossible to predict
Grade 11 Conservation and Biodiversity
Grade 11 Food Chains and Webs
Grade 11 Food Chains and Webs
__ are organisms that make their own food.
  1. autotrophs
  2. heterotrophs
  3. monotrophs
  4. selfatroph
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