food chains Unit Quiz Name________________________________________ Date_____________ Directions: Select the best answer for each item below. 3.Which of the following sentences correctly uses the term photosynthesis? 1.What are two main sources of energy for living things? a the Sun and Moon b electricity and gasoline c the Sun and food d food and water © iStockphoto.com/ ideeone Design Solutions 2.What is the main difference between a producer and a consumer? a Some cameras use a process b Animals use photosynthesis c Plants use photosynthesis to d Photosynthesis describes a A consumer makes its own food, but a producer must get food from other living things. b A producer makes its own food, but a consumer must get food from other living things. c A producer is part of a food chain, but a consumer is part of a food web. d A consumer is part of a food chain, but a producer is part of a food web. © Learning A–Z All rights reserved. called photosynthesis to turn light into digital pictures. to turn sunlight, air, water, and nutrients into food energy. turn sunlight, air, water, and nutrients into food energy. how animals compete for the same natural resources. 4.Which list shows a group of living things in the correct sequence within a food chain? a wolf—deer—leaves b black bear—insects—salmon c dog—parakeet—hamster d snake—moose—berries Unit Quiz continued on following page www.sciencea-z.com ASSESSMENT Food Chains—Unit Quiz continued Name________________________________________ Date_____________ 5.Why is the base of an energy pyramid wider than the top? tertiary consumer (carnivore) golden eagle secondary consumers (carnivores) 6.If most of the rabbits on an island became sick and died, what would likely happen to the populations of other species on that island? a The population of eagles b The population of ladybugs c The population of blue jays d The population of foxes black-footed ferrets primary consumers (herbivores) prairie dogs producers (plants) grass a There are usually many more producers than top predators in an ecosystem. b Only a small portion of energy can be passed from a lower level to the level above it. c Both a and b are true. d Neither a nor b is true. Photos/Art (top to bottom, left to right): 1, 3, 4, 5: © Jupiterimages Corporation; 2: © iCLIPART.com © Learning A–Z All rights reserved. would probably increase. would probably increase. would probably decrease. would probably decrease. 7.What sort of living thing can connect the top of a food chain back to the bottom when a top predator dies? a decomposer b producer c consumer d Nothing can connect the top and bottom of a food chain. Unit Quiz continued on following page www.sciencea-z.com ASSESSMENT Food Chains—Unit Quiz continued Name________________________________________ Date_____________ 8.An owl is a predator, so a mouse is _________. a an herbivore b prey c a consumer d a decomposer 9.Why do animals have adaptations? a There is competition for b Ecosystems can change. c Special body parts the same food sources. and behaviors are needed for survival. d All of the above © Learning A–Z All rights reserved. a Each species in a b If one species c Like a chain, the species in d There is an equal population chain plays the same role and has the same importance. becomes weak or is eliminated, the whole chain suffers. © iStockphoto.com/Studio Araminta © iStockphoto.com/David Lochhead 10.How are the species in an ecosystem similar to links in a chain? an ecosystem are always related in a single line. of each species, just as each link in a chain is the same size as the next. 11.Below is a list of ways an ecosystem may change. Write the letter N beside the changes that are natural, and write the letter H beside the changes that are caused by humans. If the change can be natural or caused by humans, write the letter B for both. ___ earthquake ___ oil spill ___ pesticide ___ fire ___ cutting forests ___ volcano ___ disease ___ pollution Unit Quiz continued on following page www.sciencea-z.com ASSESSMENT Food Chains—Unit Quiz continued Name________________________________________ Date_____________ Directions: Use the diagram below to answer questions 12–14. © iStockphoto.com/Irving N. Saperstein 1 12.What type of diagram is shown? a a food chain b a food web c an energy pyramid d all of the above 13.Which living thing most likely belongs in box 2? polar bear 2 a arctic flowers b tiny ice worms c a harp seal d another polar bear 14.What sort of item belongs in box 4? a something that would b something that the c something that helps d ocean water © Hellem/Dreamstime.com 3 codfish 4 © Learning A–Z All rights reserved. eat the fish fish would eat decompose the fish when it dies 15.Extended Response: Choose at least three living things that live in the same ecosystem. Draw either a food chain or a food web to show how they are related. www.sciencea-z.com food chains Unit Quiz Answer Sheet I=inferential V=vocabulary L=literal/recall D=data analysis 1.c L 2. b L 3. c V 4. a I 5. c L 6. d I 7. a L 8.b V 9. d I 10. b I 11. N earthquake H oil spill H pesticide B fire H cutting forests N volcano B disease H or Bpollution 12. a D 13. D 14. b D 15. Extended Response: Students should select at least three organisms that live in the same ecosystem. Then students should accurately depict how these species are interrelated on either a food chain or a food web. © Learning A–Z All rights reserved. www.sciencea-z.com
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