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Eleventh Grade (Grade 11) Ecology Questions

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Grade 11 Communities, Populations, and Ecosystems
Which scenario best illustrates the concept of carrying capacity?
  1. The exponential growth of a fruit fly population continues to increase and will eventually double in ten days.
  2. The exponential growth of ants increases dramatically when its competitor species is forced to move due to habitat loss.
  3. The logistic growth of a giraffe population continues to decline due to the increase in number of predators.
  4. The logistic growth of a bunny population has stabilized because the population has reached the largest numbers that the area can support.
Grade 11 Food Chains and Webs
What is an organism that eats only plants?
  1. carnivore
  2. detrivore
  3. herbivore
  4. omnivore
Grade 11 Biomes

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

Which biome is located directly on the equator?
  1. savanna
  2. desert
  3. tropical rainforest
  4. deciduous forest
Grade 11 Biogeochemical Cycles
What is the best definition of global warming?
  1. Earth warming on all sides
  2. an increase in the average temperature worldwide caused by the greenhouse effect
  3. people around the world feeling warm all over
  4. Earth warming because of the many fires in the jungle
Grade 11 Symbiosis
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 Biogeochemical Cycles

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

Grade 11 Food Chains and Webs
In the food chain of plants --> mouse --> snake --> hawk, what might happen to the mouse population if snakes are removed from the ecosystem?
  1. The mouse population will decrease.
  2. The mouse population will increase.
  3. The mouse population will stay the same.
  4. It is impossible to predict.
Grade 11 Communities, Populations, and Ecosystems
A species that enters an environment where it has not lived before is a(n)
  1. endangered species.
  2. invasive species.
  3. predator.
  4. threatened species.
Grade 11 Communities, Populations, and Ecosystems
Grade 11 Communities, Populations, and Ecosystems
Which list is the levels of organization in an ecosystem in the correct order?
  1. population, community, ecosystem, individual
  2. community, population, ecosystem, individual
  3. individual, community, population, ecosystem
  4. individual, population, community, ecosystem
Grade 11 Conservation and Biodiversity
What is the definition of biodiversity?
  1. the study of biology in the jungles
  2. the study of biology in a university
  3. the variety of species in the environment
  4. biochemicals in the field of science
Grade 11 Biogeochemical Cycles
The carbon reservoir most affected as a direct result of human activity is the
  1. deep ocean.
  2. vegetation.
  3. atmosphere.
  4. photosynthesis.
Grade 11 Food Chains and Webs
What is this diagram an example of?
Food Web
  1. food chain
  2. energy pyramid
  3. food web
  4. evolutionary tree
Grade 11 Communities, Populations, and Ecosystems
What is a population?
  1. total number of a particular species in an area
  2. all the biotic and abiotic factors in an area
  3. all the species in an area
  4. a group of several ecosystems
Grade 11 Conservation and Biodiversity
Grade 11 Food Chains and Webs
Grade 11 Symbiosis
Which statement is true of parasitism?
  1. One organism benefits, and the other is unaffected.
  2. One organism benefits, and the other is harmed.
  3. One organism benefits, and the other benefits more.
  4. Both organisms are harmed.
Grade 11 Conservation and Biodiversity
What is a mass extinction?
  1. rapid increase in biodiversity
  2. result of an exotic species
  3. disappearance of many species in a short period of time
  4. benefit to the environment
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