food chains and food webs 3 rd grade. question 1 in this food chain, the arrows are used to show the...
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Food Chains and Food Webs
3rd Grade
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Question 1In this food chain, the arrows are used to show the flow of energy. The grasshopper gets its energy directly from the ----Sun Grass Grasshopper Frog
A. GrassB. SnakeC. FrogD. Sun
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AnswerO A. Grass
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Question 2Which statement correctly describes how energy flows in the food chain shown here? Sun Plant Mosquito Bird
A. From plant to SunB. From snake to mosquitoC. From bird to plantD. From mosquito to bird
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AnswerO D. From mosquito to bird
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Question 3The squirrel gets its energy directly from ---- Sun Tree Squirrel Hawk
A. the SunB. the treeC. the other squirrelsD. the hawk
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AnswerO B. the tree
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Question 4The diagram shows an incomplete food chain. Which of the following would complete the food chain? Sun ________ Insects Frogs Snakes
A. Small fishB. MosquitosC. Green plantsD. Bald eagles
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AnswerO C. Green plants
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Question 5If the mice are removed from this food chain, which animal population would most likely be affected first? Sun Plant seeds Field mouse Snake Mountain Lion
A. Plant seedsB. Field miceC. SnakesD. Mountain lions
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AnswerO C. Snakes
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Question 6
Which of the following is represented in the food chain below? Sun Plants Insects Fish Humans
A. Evaporation of waterB. Transfer of energyC. Reflection of lightD. Changing of phase
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AnswerO B. Transfer of energy
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Question 7What is most likely this first thing to result from having fewer field mice in the food chain pictured here? Sun Plant seeds Field mouse Snake Eagle A. The snakes would have to find another food source.B. The plants that make seeds would decrease in number.C. The eagles would have to fly away to a different location.D. The new fish population will decrease.
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AnswerO A. The snakes would have to find
another food source.
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Question 8 A new fish is introduced in a pond that also eats the plants. What changes would occur in this pond ecosystem?
A. The large fish population will decrease
B. The plant population will decrease.C. The small fish population will
increase.D. The new fish population will
decrease.
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AnswerO B. The plant population will
decrease.
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Question 9Which of the following correctly shows how energy moves through a food chain?
A. Sun meat eaters plants plant eatersB. Sun plants plant eaters meat eatersC. Sun plant eaters meat eaters plantsD. Sun plants meat eaters plant eaters
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AnswerO B. Sun plants plant eaters meat
eaters
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Question 10Based on the food chain illustrated below, what effect would most likely be a direct result of increasing the number of fish? Sun Plant Beetle Fish
A. Beetles would have trouble finding food.B. There would be more kinds of plants.C. The population of beetles would decrease.D. Plants would no longer survive in this
habitat.
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AnswerO C. The population of beetles would
decrease.
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Question 11
Which of the following uses the Sun’s energy to grow?
A. PlantsB. HumansC. BirdsD. Water
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AnswerO A. Plants
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Question 12
List two organisms that use the Sun’s energy to survive: 1. _____________________________ 2. _____________________________
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AnswerO Any type of plant uses the Sun’s
energy
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Question 13
List two organisms eat other animals to survive: 1. _____________________________ 2. _____________________________
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AnswerO Any type of meat eater gets its
energy from other animals
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Question 14
Use the following words to correctly fill in the food chain: grains, mouse, fox, and Sun. _______________ ______________ _______________ _______________
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AnswerO Sun grains mouse fox
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Question 15
What is the original source of energy for all organisms in a pond ecosystem?
A. WaterB. PlantsC. Animals
D. Sun
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AnswerO D. Sun
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Question 16
Which food chain shows the correct flow of energy through a prairie ecosystem?
A. Bird Mouse Plant SunB. Sun Plant Mouse BirdC. Mouse Plant Sun BirdD. Plant Sun Bird Mouse
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Answer
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Question 17A disease is causing plants not to grow in this habitat. How will this affect the food chain? The number of ---- Sun Plant Small fish Large fish
A. large fish will increaseB. small fish will increaseC. small fish will decreaseD. sunlight will increase
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AnswerO C. small fish will decrease
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Question 18
A __________________ shows how energy moves through the environment.
A. decomposerB. listC. graphic chartD. food chain
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AnswerO D. food chain
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Question 19
A model that shows how food chains overlap is called a _________________.
A. food chainB. organism listC. food webD. predator
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AnswerO C. food web
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Question 20
An animal that hunts another animal for food is called a _______________________.
A. preyB. consumerC. decomposerD. predator
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AnswerO D. predator