Ecological Order and Nutrient Cycle Quiz
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Questions and Answers

What do the roots of plants primarily do in relation to the soil?

  • Decay and enrich the soil
  • Emit carbon dioxide
  • Produce oil and coal
  • Prevent erosion (correct)

How do plants contribute to the movement of the Material Order?

  • By absorbing minerals from the soil
  • By holding the soil together
  • By emitting oxygen (correct)
  • By decaying into oil and coal

What is the relationship between Pranic Order and Material Order as described in the text?

  • They co-exist and deny each other
  • They have no effect on each other
  • They naturally exist in a relationship of mutual fulfilment (correct)
  • They are in a competition for resources

How does the Plant/Bio-Order contribute to enriching the soil?

<p>By decaying and forming more nutrients (A)</p> Signup and view all the answers

Which aspect of plants helps in preventing soil erosion, according to the text?

<p>Roots holding the soil together (D)</p> Signup and view all the answers

What is the role of primary production in an ecosystem?

<p>Convert sunlight to chemical energy in plants (B)</p> Signup and view all the answers

In a mutualistic relationship, what is a common characteristic?

<p>One species benefits indirectly (C)</p> Signup and view all the answers

Which of the following describes an example of commensalism?

<p>Epiphytes growing on tree branches for shelter (C)</p> Signup and view all the answers

What characterizes a parasitic relationship?

<p>One species gains resources at the expense of another (B)</p> Signup and view all the answers

Why does energy transfer efficiency vary among different ecosystems?

<p>Because of factors like food web structure and nutrient availability (C)</p> Signup and view all the answers

What is the primary function of energy flow in an ecosystem?

<p>Transforming organic molecules into useful energy for life (B)</p> Signup and view all the answers

What term refers to the complex interactions between living organisms and their nonliving environment?

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

Which of the following is NOT mentioned as a physical factor influencing ecosystem relationships?

<p>Wind speed (C)</p> Signup and view all the answers

What role do keystone species play in an ecosystem?

<p>Having a disproportionate impact on their environment (D)</p> Signup and view all the answers

What is the primary function of decomposers in nutrient cycles?

<p>Break down dead plant matter and release nutrients (B)</p> Signup and view all the answers

Which of the following is an example of a keystone species mentioned in the text?

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

What do nutrient cycles involve in an ecosystem?

<p>Movement of essential elements like nitrogen, carbon, and phosphorus (A)</p> Signup and view all the answers

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