🧬 Ecology and Ecosystem Interactions

🧬 Biology & Health · Quiz 006

Distinguish levels of ecological organization and reason about mutualism, carbon movement, invasive species, and indirect effects within ecosystems.

Learning goalDistinguish levels of ecological organization and reason about mutualism, carbon movement, invasive species, and indirect effects within ecosystems.

  • 5 questions
  • Foundation
  • Explanations after finishing
Answered 0/5
FoundationWhich term describes living organisms in an area together with the nonliving environment with which they interact?
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Include both the living community and nonliving surroundings.

UnderstandingA fungus increases a plant's access to water and mineral nutrients, while the plant supplies the fungus with sugars. Which interaction is this?
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Ask whether each partner experiences a benefit.

ApplicationA researcher supplies a plant with carbon dioxide containing a detectable carbon label. Later, the label appears in sugars made by the plant. Which process most directly moved that carbon into the organic molecules?
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The carbon began as atmospheric carbon dioxide and ended in newly made plant sugars.

InterpretationA plant species is introduced outside its native range. It establishes and spreads, displacing native plants and altering habitat. Which classification is best supported?
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Being nonnative is not enough by itself; look for spread plus ecological harm.

ConnectionIn a grassland, removal of a major predator is followed by a large increase in herbivores and then a decline in heavily grazed plants. What does this sequence best demonstrate?
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Trace the chain: predator change, herbivore change, then plant change.

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