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Food Webs
Verified
6 pages

Food Webs

Which group is not represented in the food web: decomposers. What do the arrows in the food chain indicate about the flow of energy in an ecosystem: Energy flows in one direction in an ecosystem, from producers to consumers.. In this energy pyramid, which organism would most likely be in level 2: caterpillar. Which one of the following is true of grass in an ecosystem: It produces glucose from carbon dioxide and water.. How would the removal of earthworms from the food chain affect the other organisms: The number of crayfish will decrease.. Interactions in an ecosystem result from the transfer of matter and energy from producers to consumers and eventually decomposers. What are the forms of energy transfer from numbers 1 through 4: Light energy to chemical energy. The diagram shows part of an aquatic food web for a stable lake ecosystem in Connecticut. What is the source of energy for the algae: sunlight. 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 hawks for food. For the food chain shown, which of the following changes would have the most severe consequences: a drastic decrease in rainfall, causing a drought. The diagram provided shows a marine food chain. In this food chain, the zooplankton are: primary consumers.. The picture provided shows an ocean bay food chain. Sea otters move into the ocean bay. They eat all of the sea urchins. This change will cause the: sea ducks to have less food.. The picture shows an energy pyramid. What will most likely happen to the foxes and the wolves if the rabbits are removed: There will be fewer foxes and wolves.. The diagram provided shows a simple food web. Which group of organisms is not represented in the diagram: decomposers. A 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. Based on the new information, which conclusion would be appropriate: Another organism in the marine ecosystem is a producer.. Which of these organisms would most likely be found at the top of an energy pyramid: sharks. A 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 due to this change in the ecosystem: The rabbit food supply would increase.. The picture shows the energy flow through a meadow community. Which of the following would most likely occur to the populations within the community of organisms immediately after a wildfire burns the environment: Meadow plants would decrease and rabbits would decrease.. Which of these organisms would most likely be found at the bottom of a biomass pyramid: green algae

Grade:--
10
Food Chains and Food Webs Review
Verified
4 pages

Food Chains and Food Webs Review

Producers are generally found at the beginningof a food chain. Which statement best explainswhy this is true: . The organisms represented by X are: . Which would be the most likely effect of adrastic reduction in all the producer organismsin a meadow environment: . Most of the food and oxygen in theenvironment is produced by the action of: . Which two organisms are classified as producers: . For a producer to maintain itself, which factormust be present in its environment: . A fruit fly is classified as a consumer ratherthan as a producer because it is unable to: . Because turkey vultures feed mainly on animalsthat they have not killed, they are known as: . Which row in the chart below best describes decomposers: 2. Which organisms are primary consumers: . Which nutritional relationship described belowcontains an organism that can be classified asa heterotroph, secondary consumer, andscavenger: . Which statement most accurately predicts the resultof interfering with populations in the web: . Which population would be most immediately affected by the removal of the lizardpopulation: . Which sequence of organisms represents a food chain within this food web: . The diagram below represents relationships ina community. After a pathogen reduced thepopulation of grasshoppers, the number ofmice increased, while the numbers of toadsand rabbits decreased. These changes in the community demonstrate that: . The diagram below represents a food webcomposed of producers, consumers, anddecomposers,Which group would represent the decomposerorganisms: A. Which statement regarding organisms in thisfood web is correct:

Grade:--
7

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