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ECOLOGY MCQs

Total Questions : 48 | Page 3 of 5 pages
Question 21. Increased Carbon Dioxide in the atmosphere has formed a blanket around the planet and contributed to an
  1.    increase in the temperature of the planet.
  2.    increase in noise
  3.    increase in ice around the planet.
  4.    increase in parasites looking for hosts.
 Discuss Question
Answer: Option A. -> increase in the temperature of the planet.
Question 22. A graphic illustration that shows each trophic level and the amount of useable energy contained within
  1.    Food chain
  2.    Food web
  3.    Energy Pyramid
  4.    All of these
 Discuss Question
Answer: Option C. -> Energy Pyramid
Question 23. Which of these are the Niche of Squirrel?
  1.    Predator when it eats an insect.
  2.    Prey when it is eaten by an owl.
  3.    Planter when it hides and acorn and forgets where it is
 Discuss Question
Answer: Option C. -> Planter when it hides and acorn and forgets where it is
Question 24. Plants that convert energy from the sun
  1.    decomposer
  2.    primary consumer
  3.    secondary consumer
  4.    producer
 Discuss Question
Answer: Option D. -> producer
Question 25. What does every food chain start with? (Even if it's not drawn or written there!)
  1.    producers
  2.    sun
  3.    consumer
  4.    decomposers
 Discuss Question
Answer: Option B. -> sun
Question 26. The energy at each trophic level in the pryamid of energy decreases by a factor of ____
  1.    10
  2.    1
  3.    100
  4.    2
 Discuss Question
Answer: Option A. -> 10
Question 27. An organism that produces its own food supply from inorganic compounds is called a(an)
  1.    heterotroph
  2.    consumer
  3.    detritivore
  4.    autotroph
 Discuss Question
Answer: Option D. -> autotroph
Question 28. When the environment changes more quickly then a species can adapt to the changes, the species may become
  1.    extinct
  2.    diverse
  3.    dominate
  4.    overpopulated
 Discuss Question
Answer: Option A. -> extinct
Question 29. Organisms that relies on other organisms for food; consumer
  1.    herbivore
  2.    decomposer
  3.    heterotroph
  4.    species
 Discuss Question
Answer: Option C. -> heterotroph
Question 30. How do producers get the nutrients they need to survive?
  1.    They obtain energy from eating other organisms.
  2.    The break down and use the nutrients in dead organisms.
  3.    They absorb nutrients from the atmosphere. 
  4.    They use energy from the sun to make food from water and carbon dioxide. 
 Discuss Question
Answer: Option D. -> They use energy from the sun to make food from water and carbon dioxide. 

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