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Eleventh Grade (Grade 11) Ecology Questions

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Grade 11 Conservation and Biodiversity
What are two human actions that affect life and biodiversity?
  1. deforestation and pollution
  2. weather and natural disasters
  3. farming and working in the factories
  4. raising animals on farms and eating them
Grade 11 Conservation and Biodiversity
Which factor is a cause of declining global biodiversity?

I. overharvesting
II. pollution
III. habitat loss
  1. I
  2. I and II
  3. I and III
  4. I, II, and III
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 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
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
Grade 11 Communities, Populations, and Ecosystems
All living organisms that inhabit an environment make up a(n)
  1. community.
  2. abiotic.
  3. habitat.
  4. biotic.
Grade 11 Ecology
The                 is the sphere inhabited by life.
  1. biosphere
  2. geosphere
  3. atmosphere
  4. hydrosphere
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 lack of natural enemies.
  4. often unable to compete effectively in the new environment.
Grade 11 Communities, Populations, and Ecosystems
What occurs when organisms attempt to use the same limited resources, in the same place, at the same time?
  1. competition
  2. predation
  3. commensalism
  4. parasitism
Grade 11 Biotic and Abiotic
Which of these is a biotic factor?
  1. algae
  2. rocks
  3. sea water
  4. sand
Grade 11 Biomes
Which biome has the lowest average annual temperature of these biomes?
  1. rain forest
  2. grassland
  3. coniferous forest
  4. tundra
Grade 11 Communities, Populations, and Ecosystems
A(n)                 is composed of a biological community and its physical environment.
  1. ecosystem
  2. community
  3. habitat
  4. food web
Grade 11 Biomes
The                 is the sphere inhabited by life.
  1. biosphere
  2. geosphere
  3. atmosphere
  4. hydrosphere
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
In the food chain of plants --> deer --> wolves, which organism is the primary consumer?
  1. plants
  2. deer
  3. wolves
  4. none of the above
Grade 11 Symbiosis
What is the symbiotic relationship in which one organism lives inside or on another organism?
  1. competition
  2. predation
  3. commensalism
  4. parasitism
Grade 11 Conservation and Biodiversity
What is the best example of how to directly improve biodiversity?
  1. Reduce the amount of vegetables we eat.
  2. Reduce the amount of water we drink.
  3. Reduce the use of electricity.
  4. Reduce the use of pesticides as they might do harm to other plants nearby.
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