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Ecology Questions - All Grades

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Grade 5 Food Chains and Webs
In an ecosystem, how are food webs and food chains different?
  1. Food webs begin with animals, and food chains begin with plants.
  2. Food webs rarely begin with plants, and food chains begin with animals.
  3. Food webs show the relationship between many different food chains in a single ecosystem.
  4. Food chains show the relationship between many different food webs in a single ecosystem.
Grade 10 Conservation and Biodiversity
The variety of different species living in a habitat is                .
  1. woodland
  2. transection
  3. zonation
  4. biodiversity
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 4 Communities, Populations, and Ecosystems
For an insect, the space under a rock is likely its                .
  1. population.
  2. niche.
  3. food source.
  4. habitat.
Grade 5 Food Chains and Webs
Animals that hunt other animals to eat are
  1. prey.
  2. omnivores.
  3. predators.
  4. herbivores.
Grade 4 Communities, Populations, and Ecosystems
The                 is defined as where an animal lives.
  1. biome
  2. habitat
  3. ecosystem
Grade 5 Food Chains and Webs
In the diagram below, which is a decomposer?
Food Web
  1. bird
  2. snake
  3. grass
  4. mushroom
Grade 5 Food Chains and Webs
What is the original source of almost all the energy in most ecosystems?
  1. carbohydrates
  2. sunlight
  3. water
  4. carbon dioxide
Grade 5 Food Chains and Webs
The niche of a producer is to
  1. eat other consumers.
  2. provide food for carnivores.
  3. make carbon dioxide-oxygen.
  4. provide food for themselves and other organisms.
Grade 10 Communities, Populations, and Ecosystems
The role an organism plays in an ecosystem is its                .
  1. abiotic
  2. niche
  3. producer
  4. food chain
Grade 5 Communities, Populations, and Ecosystems
Which description is true about the organization of an ecosystem?
  1. Communities make up species, which make up populations.
  2. Populations make up species, which make up communities.
  3. Species make up communities, which make up populations.
  4. Species make up populations, which make up communities.
Grade 6 Symbiosis
The relationship in which two species both benefit is                .
  1. commensalism.
  2. a niche.
  3. mutualism.
  4. an ecosystem.
Grade 3 Food Chains and Webs
What is a food chain?
  1. energy from the sunlight
  2. path of energy from one thing to another
  3. extra food stored by a plant
  4. slug that eats leaves
Grade 3 Food Chains and Webs
A lion is a carnivore. What does a carnivore eat?
  1. plants
  2. animals
Grade 3 Food Chains and Webs
What happens when living things decompose?
  1. They grow healthy and strong.
  2. They have babies.
  3. They store up fat for the winter.
  4. Their parts break down into the soil.
Grade 3 Biomes
A forest where all the trees drop their leaves during the winter is called a
  1. savanna.
  2. tropical rain forest.
  3. coniferous forest.
  4. deciduous forest.
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