CH 8: Environment
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Questions and Answers

What are organisms that cannot synthesize their own food and must consume other organisms called?

  • Consumers (correct)
  • Decomposers
  • Producers
  • Autotrophs
  • Which type of consumer feeds solely on plants?

  • Secondary Consumer
  • Tertiary Consumer
  • Omnivore
  • Primary Consumer (correct)
  • Which type of consumer is at the top of the food chain and has no natural predators?

  • Quaternary Consumer
  • Secondary Consumer
  • Primary Consumer
  • Tertiary Consumer (correct)
  • Which type of organism breaks down dead organic matter and returns nutrients to the soil?

    <p>Decomposers</p> Signup and view all the answers

    Which type of consumer feeds on both plant and animal material?

    <p>Omnivore</p> Signup and view all the answers

    Which organism actively hunts and kills its prey?

    <p>Predator</p> Signup and view all the answers

    Which organism consumes leftover carcasses?

    <p>Scavenger</p> Signup and view all the answers

    Which abiotic factor significantly affects the types of vegetation in an area?

    <p>Soil pH and texture</p> Signup and view all the answers

    Which type of plants are adapted to arid environments?

    <p>Xerophytes</p> Signup and view all the answers

    Which atmospheric gas plays a crucial role in supporting life through the carbon cycle?

    <p>Carbon dioxide</p> Signup and view all the answers

    Which process describes how energy moves through different trophic levels in an ecosystem?

    <p>Energy flow</p> Signup and view all the answers

    Which essential nutrient cycle recycles elements through the ecosystem to support life processes?

    <p>Carbon and oxygen cycles</p> Signup and view all the answers

    Which broader term includes both biotic and abiotic components of our surroundings?

    <p>Environment</p> Signup and view all the answers

    Which animal adaptation helps regulate body temperature in extreme environments?

    <p>Thermoregulation</p> Signup and view all the answers

    Which atmospheric factor affects precipitation patterns and seed dispersion?

    <p>Wind</p> Signup and view all the answers

    What type of organisms are crucial in nutrient cycling and energy flow in ecosystems?

    <p>Decomposers</p> Signup and view all the answers

    Which of the following animals is categorized as a secondary consumer?

    <p>Snake</p> Signup and view all the answers

    Which organisms consume both plant and animal material in an ecosystem?

    <p>Omnivores</p> Signup and view all the answers

    What are creatures like hyenas that consume leftover carcasses called?

    <p>Scavengers</p> Signup and view all the answers

    Which organisms actively hunt and kill their prey?

    <p>Predators</p> Signup and view all the answers

    What is the term for organisms that cannot synthesize their own food and must consume other organisms?

    <p>Primary Consumers</p> Signup and view all the answers

    Which type of consumer feeds on secondary consumers in the ecosystem?

    <p>Tertiary Consumers</p> Signup and view all the answers

    How do physiographic factors influence the environment?

    <p>They determine the types of vegetation that can thrive in an area.</p> Signup and view all the answers

    Which factor related to soil influences plant growth by affecting soil fertility?

    <p>Humus content</p> Signup and view all the answers

    What is the main role of atmospheric gases in ecosystems?

    <p>To support life through various biogeochemical cycles</p> Signup and view all the answers

    Which type of plants are adapted to arid environments?

    <p>Xerophytes</p> Signup and view all the answers

    What is the primary function of wind in ecosystems?

    <p>To affect precipitation and seed dispersion</p> Signup and view all the answers

    How does energy flow through ecosystems?

    <p>From producers to consumers</p> Signup and view all the answers

    What is the purpose of food chains and webs in ecosystems?

    <p>To show energy transfer among trophic levels</p> Signup and view all the answers

    Which abiotic factor directly affects plant distribution by influencing survival and growth?

    <p>Sunlight intensity</p> Signup and view all the answers

    What is the main role of decomposers in an ecosystem?

    <p>To break down dead organic matter and return nutrients to the soil</p> Signup and view all the answers

    Which category of organisms must consume other organisms for food?

    <p>Omnivores</p> Signup and view all the answers

    What distinguishes scavengers from predators in an ecosystem?

    <p>Scavengers consume leftover carcasses.</p> Signup and view all the answers

    Why are decomposers essential in an ecosystem?

    <p>To recycle nutrients by breaking down dead organic matter</p> Signup and view all the answers

    What is the primary characteristic of primary consumers in an ecosystem?

    <p>They synthesize their own food.</p> Signup and view all the answers

    Which organisms play a crucial role in recycling nutrients and energy flow within ecosystems?

    <p>Decomposers</p> Signup and view all the answers

    What is the primary function of omnivores in an ecosystem?

    <p>To consume both plant and animal material</p> Signup and view all the answers

    Which abiotic factor is not directly mentioned as influencing the survival and distribution of organisms?

    <p>Wind</p> Signup and view all the answers

    Which type of organism is not explicitly mentioned as having a role in nutrient cycling and energy flow in ecosystems?

    <p>Hydrophytes</p> Signup and view all the answers

    Which of these is not a physiographic factor?

    <p>Edaphic factors</p> Signup and view all the answers

    Which of these is not a common animal adaptation mentioned in the text?

    <p>Camouflage</p> Signup and view all the answers

    Which nutrient cycle is not explicitly mentioned in the text?

    <p>Phosphorus cycle</p> Signup and view all the answers

    Which of these is not a common feature of xerophytes?

    <p>Water-repellent surfaces</p> Signup and view all the answers

    Which of these is not a role of atmospheric gases mentioned in the text?

    <p>Regulating temperature</p> Signup and view all the answers

    Which of these is not a common feature of hydrophytes?

    <p>Extensive root systems</p> Signup and view all the answers

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