food webs quiz What will most likely happen to the foxes and the wolves if the rabbits are removed? C. D.

Transcription

1 Name: ate: 1. The picture below shows an energy pyramid. 3. Which model correctly shows energy flow in a food chain?.. What will most likely happen to the foxes and the wolves if the rabbits are removed?... The foxes will eat more wolves.. The foxes will eat fewer wolves.. There will be more foxes and wolves.. There will be fewer foxes and wolves. 2. The picture below shows an ocean bay food chain. Sea otters move into the ocean bay. They eat all the sea urchins. This change will cause the. kelp to have less food.. crabs to have more food.. sea ducks to have less food.. arctic foxes to have more food. page 1

2 4. marine food web is shown in the diagram below. 5. marine food web is shown below. Which organism below belongs in level 3 of this marine food web?. salmon. zooplankton. sea alga. polar bear Which chart correctly shows three of the organisms according to their roles in cycling matter in the marine food web?.... page 2

3 6. The picture below shows the energy flow through a meadow community. 8. Which statement best describes the flow of energy as it passes through the organisms in the pyramid?. Energy flows through the organisms from bottom to top and increases at each level.. Energy flows through the organisms from bottom to top and decreases at each level.. Energy flows through the organisms from top to bottom and increases at each level. Which of the following would most likely occur to the populations within the community of organisms immediately after a wildfire burns the environment?. Energy flows through the organisms from top to bottom and decreases at each level.. Hawks would increase and foxes would increase.. Hawks would decrease and foxes would increase.. Meadow plants would increase and rabbits would decrease.. Meadow plants would decrease and rabbits would decrease. 9. The diagram below shows a simple food web. 7. Which statement best describes what will happen if the population of herbivores in the community decreases?. The population of foxes will increase.. The population of hawks will increase.. The population of rabbits will increase.. The population of meadow plants will increase. Which animal is classified as an omnivore?. red fox. deer. black bear. rabbit page 3

4 10. The diagram below shows a simple food web. 11. ecomposers are important in the food chain because they. produce their own food using light from the Sun. Which of the following animals might compete with the coyote in this food chain?.. stop the flow of energy from one organism to another.. break down dead organisms and recycle nutrients into the soil.. are microscopic and other organisms cannot consume them The diagram below shows a marine food chain. Phytoplankton Zooplankton Herring Salmon. The zooplankton in this food chain are. primary producers.. primary consumers.. secondary consumers.. tertiary consumers. page 4

5 13. The table below contains information about animal diets. 14. forest-ecosystem food web is shown below. Which energy pyramid best represents the data in the table?. If additional wrens are introduced into this ecosystem, there will most likely be an immediate decrease in the. frog population.. snake population... falcon population.. grasshopper population In a pond, the primary producer is a green alga, Spirogyra; the primary consumer is the crustacean, aphnia; the secondary consumer is a small fish, the bluegill; and the tertiary consumer is a larger fish, the smallmouth bass. What changes can be expected in the pond if the aphnia are killed with pesticides?.. The Spirogyra population will probably die.. The bluegill population will probably increase.. The aphnia population will eat something else.. The smallmouth bass population will die. page 5

6 16. food chain is shown below. Grasses rickets Field Mice Hawks For the food chain shown, which of the following changes would have the most severe consequences?. a drastic decrease in rainfall, causing drought. the poaching of predatory hawks by game hunters 19. Examining Simple ommunities group of organisms that interact with and depend upon one another is called a community. The movement of matter and energy through a community can be studied by examining its food web. s organisms eat other organisms, energy and nutrients pass through various feeding levels. These feeding levels are called trophic levels. The following is a diagram of the energy and nutrient flow through a simple community.. the introduction of a second predator that eats field mice. a parasitic infestation that reduces the cricket population Which group would most likely contain living algae? 17. Which of these organisms would most likely be found at the top of an energy pyramid?. clams. sardines. sharks. kelp. Producers. First order consumers. Second order consumers. ecomposers 18. Which of these organisms would most likely be found at the bottom of a biomass pyramid?. giant squids. sand sharks. sea cucumbers. green algae 20. ccording to the diagram, nutrients from dead organisms are released into the soil by the action of.. producers. first order consumers. third order consumers. decomposers page 6

7 Ecosystems are composed of all living and nonliving components in an area. Food webs show the flow of nutrients and energy within an ecosystem. Use the food web to answer the following questions. group of students on a field trip observed the following organisms on an old oak tree: Woodpecker Honey ee Oak Squirreleetle aterpillar 1. Which of the following food chains is most likely to be found in this ecosystem?. aterpillar honey bee woodpecker. Oak tree squirrel woodpecker. Oak tree caterpillar woodpecker. eetle woodpecker squirrel Suppose that a new predator of the rabbit migrated to this ecosystem. What is the most likely initial effect on the other organisms?. More competition among the mice for food. More competition among the hawks for food 22. The diagram shows part of an aquatic food web for a stable lake ecosystem in onnecticut.. Less competition among snakes for food. Less grass available for food What is the source of energy for the algae?. waves. sunlight. bacteria. rotifers, water fleas and tadpoles 24. chemical pesticide was applied to an area of this ecosystem by a landowner to control the mouse population. There was a decrease in the mouse population due to the presence of this pesticide. Which one of the following would most likely occur first due to this change in the ecosystem?. The amount of grass would decrease.. The snake population would increase.. The rabbit food supply would increase.. The snake food supply would increase. page 7

8 25. The available chemical energy in this ecosystem.. decreases as it flows from consumer to producer 28. Interactions in an ecosystem result from the transfer of matter and energy from producers to consumers and eventually to decomposers. What are the forms of energy transfer from #1 #4?. remains constant as it flows from consumer to producer. decreases as it flows from producer to consumer. increases as it flows from producer to consumer. hemical energy to chemical energy 26. Which one of the following is true of grass in an ecosystem?. It converts oxygen to glucose.. Light energy to chemical energy. hemical energy to heat energy. Heat energy to mechanical energy. It produces carbon dioxide from oxygen and water.. It produces glucose from carbon dioxide and water.. It converts water to energy. 27. If animals eat plants to get energy, where do plants get their energy?. Soil. Water. Wind. Sun page 8

9 29. simple food chain is shown. What is the source of food in this food chain? 30. How would the removal of earthworms from the food chain affect the other organisms?. The number of bass will increase.. The number of crayfish will decrease.. Sun. Frog. Grass. Grasshopper. The crayfish will get their energy directly from the Sun.. The number of bass and ospreys will increase. page 9

10 31. student examines the information in the table. The student concludes that Organism W should be placed at the base of the food web, to represent the feeding relationships in the marine ecosystem. However, the student later learns that Organism W s cells do not contain chloroplasts. 33. In ecosystems, the sun s energy is transferred through food webs as shown below. Organism ehavior Movement T Feeds on Organism U Mobile U Feeds on Organisms V and W Mobile V Is eaten by Organism U Mobile W Is eaten by Organisms U and V Stationary Which conclusion would be appropriate, based on the new information? The sun s energy is most directly available to people through. nother organism in the marine ecosystem is a producer.. Organism W is a secondary consumer in the marine ecosystem.. path.. path.. path.. path.. The role of Organism T in the marine ecosystem changes during its life.. This marine ecosystem does not have any producers We get energy from the food we eat. The energy in the food first comes from the. soil.. fertilizers used by farmers. Wolves get energy from eating rabbits. Rabbits get energy from eating grass. The grass makes its own food energy. If lots of the wolves were killed, then. sun.. vitamins added by food manufacturers.. there would be more rabbits.. there would be fewer rabbits.. more grass would grow.. less grass would be eaten. page 10

11 35. Use the diagram below to answer the question. 37. Use the food chain below to answer the following question. In this energy pyramid, which organism would most likely be in level 2?. bird. fox. caterpillar. tree What do the arrows in the food chain indicate about the flow of energy in an ecosystem? 36. Use the diagram below to answer the question.. Energy is continuously recycled by the organisms in an ecosystem.. Energy flows in one direction in an ecosystem, from producers to consumers.. More of the available energy in an ecosystem is given to large animals than to small animals.. Organisms at the end of the food chain receive more energy than those at the beginning. Which group of organisms is not represented in the diagram above of a simple food web?. decomposers. prey. consumers. producers page 11

12 38. Use the food web below to answer the following question. Which group is not represented in the food web?. producers. primary consumers. secondary consumers. decomposers page 12

13 Problem-ttic format version c Educide Software Licensed for use by Taylor Wharton Terms of Use at 10/03/