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Fourth Grade (Grade 4) Ecology Questions

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Grade 4 Biotic and Abiotic
Which is an abiotic factor in an ecosystem?
  1. ant
  2. decaying plant
  3. earthworm
  4. sand
Grade 4 Food Chains and Webs
Select an example of a decomposer.
  1. bumblebee
  2. fly
  3. mushroom
  4. bear
Grade 4 Communities, Populations, and Ecosystems
Recently, a family of bobcats moved into an area with a large rabbit population. What changes may occur in the ecosystem?
  1. The rabbit population may increase.
  2. The rabbit population may decrease.
  3. The bobcat population may decrease.
  4. The bobcat population may stay the same.
Grade 4 Food Chains and Webs
Select an example of a carnivore.
  1. butterfly
  2. giraffe
  3. ladybug
  4. lion
Grade 4 Communities, Populations, and Ecosystems
Are all the living and nonliving things in an environment that interact an ecosystem?
  1. yes
  2. no
Grade 4 Communities, Populations, and Ecosystems
When two or more blue jays live and interact in the same area, the blue jays are a(n)
  1. ecosystem.
  2. community.
  3. habitat.
  4. population.
Grade 4 Communities, Populations, and Ecosystems
A group of only one type of organism is a                .
  1. community.
  2. population.
  3. producer.
  4. consumer.
Grade 4 Food Chains and Webs
A living thing that cannot make its own food and must eat other living things is a(n)
  1. consumer.
  2. herbivore.
  3. carnivore.
  4. omnivore.
Grade 4 Food Chains and Webs
What is a food chain?
  1. grocery store
  2. links made of metal
  3. path of energy flow between organisms
Grade 4 Communities, Populations, and Ecosystems
Everything that surrounds and affects an animal, including living and nonliving things, is
  1. climate.
  2. environment.
  3. shelter.
  4. oxygen.
Grade 4 Biomes
The environment covering two-thirds of the planet is
  1. mountain.
  2. ocean.
  3. desert.
  4. rainforest.
Grade 4 Food Chains and Webs
Plants make their own food. Plants are called
  1. producers.
  2. consumers.
  3. decomposers.
  4. predators.
Grade 4 Food Chains and Webs
When a predator population's food supply gets larger, the predator population
  1. gets larger.
  2. dies.
  3. gets smaller.
  4. uses adaptations.
Grade 4 Biotic and Abiotic
What are the living parts of an ecosystem?
  1. air, water, soil, climate, and landforms
  2. animals, plants, fungi, protists, and bacteria
Grade 4 Food Chains and Webs
Organisms that break down waste or remains are
  1. decomposers.
  2. producers.
  3. consumers.
  4. populations.
Grade 4 Biotic and Abiotic
What two types of things does every ecosystem have?
  1. living and non-living things
  2. food and water
  3. trees and air
Grade 4 Food Chains and Webs
Plant eaters are                .
  1. carnivores.
  2. herbivores.
  3. producers.
  4. decomposers.
Grade 4 Food Chains and Webs
An organism that makes its own food is a
  1. producer.
  2. consumer.
  3. decomposer.
  4. parasite.
Grade 4 Food Chains and Webs
A                 is always at the bottom of a food chain.
  1. bird
  2. carnivore
  3. producer
  4. pyramid
Grade 4 Communities, Populations, and Ecosystems
An ecosystem can be very small.
  1. True
  2. False
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