CBSE Science Chapter 7 Quiz

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Questions and Answers

What is the main topic of CBSE Science Chapter 7 for Class 7?

  • Cell Structure
  • Chemical Reactions
  • Ecology (correct)
  • Photosynthesis

What is the primary role of decomposers in an ecosystem?

  • Breaking down dead organisms and organic matter (correct)
  • Predating on herbivores
  • Maintaining the oxygen levels in the atmosphere
  • Producing energy through photosynthesis

Which of the following is an example of an abiotic component of an ecosystem?

  • Wolves
  • Grasshoppers
  • Trees
  • Sunlight (correct)

What is the primary source of energy for carnivorous plants?

<p>Photosynthesis (B)</p> Signup and view all the answers

Where are carnivorous plants commonly found?

<p>Acidic bogs (B)</p> Signup and view all the answers

How many times is true carnivory believed to have evolved independently in flowering plants?

<p>At least 12 times (C)</p> Signup and view all the answers

What was the title of the treatise published by Charles Darwin recognizing the significance of carnivory in plants?

<p>Insectivorous Plants (B)</p> Signup and view all the answers

How many species are included in the classification of true carnivory among plants?

<p>At least 583 species (C)</p> Signup and view all the answers

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